Make default layer size 16-bit (#15286)

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

180 files changed, 431 insertions, 467 deletions

diff --git a/keyboards/1upkeyboards/sweet16/keymaps/ridingintraffic/keymap.c b/keyboards/1upkeyboards/sweet16/keymaps/ridingintraffic/keymap.c
index 6b7b36cbb2..eeca552657 100644
--- a/keyboards/1upkeyboards/sweet16/keymaps/ridingintraffic/keymap.c
+++ b/keyboards/1upkeyboards/sweet16/keymaps/ridingintraffic/keymap.c
@@ -196,7 +196,7 @@ void matrix_scan_user(void) {
   }
 }
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _TAPLAND:
         rgblight_setrgb(0, 16, 0); //green
         break;
diff --git a/keyboards/40percentclub/gherkin/keymaps/itsaferbie/keymap.c b/keyboards/40percentclub/gherkin/keymaps/itsaferbie/keymap.c
index 950b6e86b9..32c074c88f 100644
--- a/keyboards/40percentclub/gherkin/keymaps/itsaferbie/keymap.c
+++ b/keyboards/40percentclub/gherkin/keymaps/itsaferbie/keymap.c
@@ -105,7 +105,7 @@ void matrix_scan_user(void) {
   #ifdef RGBLIGHT_ENABLE
 
   static uint8_t old_layer = 255;
-  uint8_t new_layer = biton32(layer_state);
+  uint8_t new_layer = get_highest_layer(layer_state);
 
   // Color of the Icons.
   if (old_layer != new_layer) {
diff --git a/keyboards/40percentclub/half_n_half/keymaps/Boy_314/keymap.c b/keyboards/40percentclub/half_n_half/keymaps/Boy_314/keymap.c
index 2eef3dc48b..bd467482fe 100644
--- a/keyboards/40percentclub/half_n_half/keymaps/Boy_314/keymap.c
+++ b/keyboards/40percentclub/half_n_half/keymaps/Boy_314/keymap.c
@@ -128,10 +128,10 @@ void tap_dance_choose_layer_reset (qk_tap_dance_state_t *state, void *user_data)
 			layer_off(_RAISE);
 			break;
 		case 3:
-			if (biton32(default_layer_state) == _DVORAK) {
+			if (get_highest_layer(default_layer_state) == _DVORAK) {
 				set_single_persistent_default_layer(_QWERTY);
 			}
-			else if (biton32(default_layer_state) == _QWERTY) {
+			else if (get_highest_layer(default_layer_state) == _QWERTY) {
 				set_single_persistent_default_layer(_DVORAK);
 			}
 			break;
diff --git a/keyboards/bandominedoni/keymaps/led/keymap.c b/keyboards/bandominedoni/keymaps/led/keymap.c
index 305756b5b1..4a88d33872 100644
--- a/keyboards/bandominedoni/keymaps/led/keymap.c
+++ b/keyboards/bandominedoni/keymaps/led/keymap.c
@@ -180,7 +180,7 @@ void keyboard_post_init_user(void) {
 #ifdef RGB_MATRIX_ENABLE
 void rgb_matrix_indicators_user(void) {
     if (rgb_matrix_is_enabled()) {  // turn the lights on when it is enabled.
-        uint8_t layer = biton32(layer_state);
+        uint8_t layer = get_highest_layer(layer_state);
         switch (layer) {
             case _CLOSE:
                 // rgb_matrix_set_color(pgm_read_byte(&convert_led_location2number[11]),  RGB_RED);         //  RGB_TOG  <- too heavy.
diff --git a/keyboards/bandominedoni/keymaps/via/keymap.c b/keyboards/bandominedoni/keymaps/via/keymap.c
index ad6833d692..342ed1d40c 100644
--- a/keyboards/bandominedoni/keymaps/via/keymap.c
+++ b/keyboards/bandominedoni/keymaps/via/keymap.c
@@ -118,7 +118,7 @@ void keyboard_post_init_user(void) {
 #ifdef RGB_MATRIX_ENABLE
 void rgb_matrix_indicators_user(void) {
     if (rgb_matrix_is_enabled()) {  // turn the lights on when it is enabled.
-        uint8_t layer = biton32(layer_state);
+        uint8_t layer = get_highest_layer(layer_state);
         switch (layer) {
             case _CLOSE:
                 // rgb_matrix_set_color(pgm_read_byte(&convert_led_location2number[11]),  RGB_RED);         //  RGB_TOG  <- too heavy.
diff --git a/keyboards/biacco42/ergo42/keymaps/hdbx/keymap.c b/keyboards/biacco42/ergo42/keymaps/hdbx/keymap.c
index bb3b6fac48..58f01bb322 100644
--- a/keyboards/biacco42/ergo42/keymaps/hdbx/keymap.c
+++ b/keyboards/biacco42/ergo42/keymaps/hdbx/keymap.c
@@ -134,7 +134,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // RGB Underglow使用時のレイヤー毎のカラー切り替え
-uint32_t layer_state_set_keymap (uint32_t state) {
+layer_state_t layer_state_set_keymap (layer_state_t state) {
   return state;
 }
 
@@ -148,7 +148,7 @@ void matrix_init_user(void) {
 layer_state_t layer_state_set_user(layer_state_t state) {
   state = update_tri_layer_state(state, _RAISE, _LOWER, _ADJUST);
 #ifdef RGBLIGHT_ENABLE
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _RAISE:
       rgblight_setrgb_chartreuse(); // RAISE:シャルトリューズ
       break;
diff --git a/keyboards/bpiphany/kitten_paw/keymaps/ickerwx/keymap.c b/keyboards/bpiphany/kitten_paw/keymaps/ickerwx/keymap.c
index cc4d0bca63..4553d4e0e3 100644
--- a/keyboards/bpiphany/kitten_paw/keymaps/ickerwx/keymap.c
+++ b/keyboards/bpiphany/kitten_paw/keymaps/ickerwx/keymap.c
@@ -89,7 +89,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 void matrix_scan_user(void) {
     uint8_t layer;
-    layer = biton32(layer_state);
+    layer = get_highest_layer(layer_state);
 
     if (current_layer_global != layer) {
         current_layer_global = layer;
@@ -132,7 +132,7 @@ void tap_helper(keyrecord_t *record, uint16_t orig_mod, uint16_t macro_mod, uint
 
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     uint8_t layer;
-    layer = biton32(layer_state);
+    layer = get_highest_layer(layer_state);
     if (layer == PROG2) {
          if (keycode >= KC_A && keycode <= KC_EXSEL && \
              !(  // do not send LSFT + these keycodes, they are needed for emulating the US layout
diff --git a/keyboards/bpiphany/pegasushoof/keymaps/blowrak/keymap.c b/keyboards/bpiphany/pegasushoof/keymaps/blowrak/keymap.c
index 7884462021..dc55cdf9fd 100644
--- a/keyboards/bpiphany/pegasushoof/keymaps/blowrak/keymap.c
+++ b/keyboards/bpiphany/pegasushoof/keymaps/blowrak/keymap.c
@@ -77,7 +77,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 void matrix_scan_user(void)
 {
-	uint8_t layer = biton32(layer_state);
+	uint8_t layer = get_highest_layer(layer_state);
 	switch (layer) {
 		case KM_BLOWRAK:
 			ph_caps_led_on();
diff --git a/keyboards/cannonkeys/ortho75/ortho75.c b/keyboards/cannonkeys/ortho75/ortho75.c
index 7c722d7156..58b7396a1b 100644
--- a/keyboards/cannonkeys/ortho75/ortho75.c
+++ b/keyboards/cannonkeys/ortho75/ortho75.c
@@ -5,47 +5,48 @@
 
 uint8_t layer = 0;
 
-uint32_t layer_state_set_kb(uint32_t state) {
-  state = layer_state_set_user(state);
-  layer = biton32(state);
-  return state;
+layer_state_t layer_state_set_kb(layer_state_t state) {
+    state = layer_state_set_user(state);
+    layer = get_highest_layer(state);
+    return state;
 }
 
 bool encoder_update_kb(uint8_t index, bool clockwise) {
     if (!encoder_update_user(index, clockwise)) return false;
-  uint16_t mapped_code = 0;
-  if (index == 0) {
-    if (clockwise) {
-        switch(layer){
-            case 0:
-            default:
-                mapped_code = KC_VOLU;
-                break;
-            case 1:
-                mapped_code = KC_MEDIA_NEXT_TRACK;
-                break;
-            case 2:
-                mapped_code = KC_PGDN;
-                break;
+    uint16_t mapped_code = 0;
+    if (index == 0) {
+        if (clockwise) {
+            switch (layer) {
+                case 0:
+                default:
+                    mapped_code = KC_VOLU;
+                    break;
+                case 1:
+                    mapped_code = KC_MEDIA_NEXT_TRACK;
+                    break;
+                case 2:
+                    mapped_code = KC_PGDN;
+                    break;
+            }
+        } else {
+            switch (layer) {
+                case 0:
+                default:
+                    mapped_code = KC_VOLD;
+                    break;
+                case 1:
+                    mapped_code = KC_MEDIA_PREV_TRACK;
+                    break;
+                case 2:
+                    mapped_code = KC_PGUP;
+                    break;
+            }
         }
-    } else {
-        switch(layer){
-            case 0:
-            default:
-                mapped_code = KC_VOLD;
-                break;
-            case 1:
-                mapped_code = KC_MEDIA_PREV_TRACK;
-                break;
-            case 2:
-                mapped_code = KC_PGUP;
-                break;
+        uint16_t held_keycode_timer = timer_read();
+        register_code(mapped_code);
+        while (timer_elapsed(held_keycode_timer) < MEDIA_KEY_DELAY) { /* no-op */
         }
+        unregister_code(mapped_code);
     }
-    uint16_t held_keycode_timer = timer_read();
-    register_code(mapped_code);
-    while (timer_elapsed(held_keycode_timer) < MEDIA_KEY_DELAY){ /* no-op */ }
-    unregister_code(mapped_code);
-  }
-  return true;
+    return true;
 }
diff --git a/keyboards/cannonkeys/satisfaction75/satisfaction75.c b/keyboards/cannonkeys/satisfaction75/satisfaction75.c
index bd7eaf1885..9435377839 100644
--- a/keyboards/cannonkeys/satisfaction75/satisfaction75.c
+++ b/keyboards/cannonkeys/satisfaction75/satisfaction75.c
@@ -240,7 +240,7 @@ void read_host_led_state(void) {
 
 layer_state_t layer_state_set_kb(layer_state_t state) {
   state = layer_state_set_user(state);
-  layer = biton32(state);
+  layer = get_highest_layer(state);
   oled_request_wakeup();
   return state;
 }
diff --git a/keyboards/ckeys/washington/keymaps/default/keymap.c b/keyboards/ckeys/washington/keymaps/default/keymap.c
index 95e0f3ab59..9ce0181fe4 100644
--- a/keyboards/ckeys/washington/keymaps/default/keymap.c
+++ b/keyboards/ckeys/washington/keymaps/default/keymap.c
@@ -40,7 +40,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 bool encoder_update_user(uint8_t index, bool clockwise) {
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
         case _BASE:
             if (clockwise) {
                 tap_code(KC_VOLU);
@@ -62,7 +62,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
 bool oled_task_user(void) {
   // Host Keyboard Layer Status
   oled_write_P(PSTR("Layer: "), false);
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case _BASE:
       oled_write_P(PSTR("Default\n"), false);
       break;
diff --git a/keyboards/clueboard/66/keymaps/magicmonty/keymap.c b/keyboards/clueboard/66/keymaps/magicmonty/keymap.c
index 56d4c47071..7b7d2bdce0 100644
--- a/keyboards/clueboard/66/keymaps/magicmonty/keymap.c
+++ b/keyboards/clueboard/66/keymaps/magicmonty/keymap.c
@@ -199,7 +199,7 @@ void matrix_scan_user(void) {
 
     if (!rgblight_config.enable || rgblight_config.mode != 1) { return; }
 
-    uint32_t layer = layer_state;
+    layer_state_t layer = layer_state;
     uint8_t val = rgblight_config.val;
 
     if (layer & (1<<_FL)) {
diff --git a/keyboards/crkbd/keymaps/dsanchezseco/keymap.c b/keyboards/crkbd/keymaps/dsanchezseco/keymap.c
index 6ef428a11f..ab84e5c580 100644
--- a/keyboards/crkbd/keymaps/dsanchezseco/keymap.c
+++ b/keyboards/crkbd/keymaps/dsanchezseco/keymap.c
@@ -84,7 +84,7 @@ oled_rotation_t oled_init_user(oled_rotation_t rotation) {
 
 const char *read_logo(void);
 bool oled_task_user(void){
-    switch (biton32(layer_state)){
+    switch (get_highest_layer(layer_state)){
         case _DVORAK:
             oled_write_ln_P(PSTR("DVRK"), false);
             break;
diff --git a/keyboards/crkbd/keymaps/edvorakjp/keymap.c b/keyboards/crkbd/keymaps/edvorakjp/keymap.c
index 5e56da61a9..f3b801da68 100644
--- a/keyboards/crkbd/keymaps/edvorakjp/keymap.c
+++ b/keyboards/crkbd/keymaps/edvorakjp/keymap.c
@@ -54,9 +54,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 // clang-format on
 
 #ifdef RGBLIGHT_EFFECT_STATIC_GRADIENT
-uint32_t layer_state_set_keymap(uint32_t state) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
     rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case L_EDVORAKJP_LOWER:
             rgblight_sethsv_noeeprom_red();
             break;
diff --git a/keyboards/crkbd/keymaps/edvorakjp/oled.c b/keyboards/crkbd/keymaps/edvorakjp/oled.c
index e5ff029565..cd75f8e277 100644
--- a/keyboards/crkbd/keymaps/edvorakjp/oled.c
+++ b/keyboards/crkbd/keymaps/edvorakjp/oled.c
@@ -9,7 +9,7 @@ void render_layer_state(void) {
     char layer_name[17];
     oled_write_P(PSTR("Layer: "), false);
 
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
         case L_EDVORAKJP_BASE:
             oled_write_ln_P(PSTR("Default"), false);
             break;
diff --git a/keyboards/crkbd/keymaps/jarred/keymap.c b/keyboards/crkbd/keymaps/jarred/keymap.c
index b938636c2a..3784eff2b8 100644
--- a/keyboards/crkbd/keymaps/jarred/keymap.c
+++ b/keyboards/crkbd/keymaps/jarred/keymap.c
@@ -84,7 +84,7 @@ const char *read_keylogs(void);
 char matrix_line_str[24];
 
 const char *read_layer_state(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   strcpy(matrix_line_str, "Layer: ");
 
diff --git a/keyboards/dichotomy/keymaps/default/keymap.c b/keyboards/dichotomy/keymaps/default/keymap.c
index b8c7ef4274..80fc4d89bc 100755
--- a/keyboards/dichotomy/keymaps/default/keymap.c
+++ b/keyboards/dichotomy/keymaps/default/keymap.c
@@ -109,7 +109,7 @@ report_mouse_t currentReport = {};
 
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 	//uint8_t layer;
-	//layer = biton32(layer_state);  // get the current layer  //Or don't, I didn't use it.
+	//layer = get_highest_layer(layer_state);  // get the current layer  //Or don't, I didn't use it.
 	bool returnVal = true; //this is to determine if more key processing is needed.
 
 	 //custom layer handling for tri_layer,
@@ -437,7 +437,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 };
 
 void matrix_scan_user(void) {
-	//uint8_t layer = biton32(layer_state);
+	//uint8_t layer = get_highest_layer(layer_state);
 	for (uint8_t i = 0; i<LONGPRESS_COUNT; i++){
 		if ((timer_elapsed(special_timers[i]) >= CUSTOM_LONGPRESS) && (!special_key_states[i]) && special_key_pressed[i]){
 			switch (i + SAFE_RANGE){
diff --git a/keyboards/dm9records/plaid/keymaps/thehalfdeafchef/keymap.c b/keyboards/dm9records/plaid/keymaps/thehalfdeafchef/keymap.c
index 6dcabb160e..e617d0dd5f 100644
--- a/keyboards/dm9records/plaid/keymaps/thehalfdeafchef/keymap.c
+++ b/keyboards/dm9records/plaid/keymaps/thehalfdeafchef/keymap.c
@@ -129,7 +129,7 @@ layer_state_t layer_state_set_user(layer_state_t state) { return update_tri_laye
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
         case _LOWER:
diff --git a/keyboards/dz60/keymaps/iso_split-spacebar/keymap.c b/keyboards/dz60/keymaps/iso_split-spacebar/keymap.c
index a9e811f9a4..d3956ce3f0 100644
--- a/keyboards/dz60/keymaps/iso_split-spacebar/keymap.c
+++ b/keyboards/dz60/keymaps/iso_split-spacebar/keymap.c
@@ -4,12 +4,12 @@
 // thanks to atlacat, hailbreno, itsaferbie and weeheavy...
 
 // and special thanks to  AGausmann and drashna for the layer-activated RGB underglow
-// https://www.reddit.com/r/olkb/comments/6t1vdu/update_layeractivated_rgb_underglow/ 
+// https://www.reddit.com/r/olkb/comments/6t1vdu/update_layeractivated_rgb_underglow/
 // https://github.com/AGausmann/qmk_firmware/blob/agausmann-v3.x/keyboards/nyquist/keymaps/agausmann/keymap.c
 
 #include QMK_KEYBOARD_H
 
-/* 
+/*
 * Each layer gets a name for readability.
 * The underscores don't mean anything - you can
 * have a layer called STUFF or any other name.
@@ -23,8 +23,8 @@
 #define NL 2     // Numpad Layer
 #define RL 3     // RGB Layer
 
-/* 
-* Let's give an easier name to the RGB modes 
+/*
+* Let's give an easier name to the RGB modes
 * and assign the ones we want to the different layer
 * these will then be used by the function below
 *
@@ -49,10 +49,10 @@
 //
 #define RGB_RL_MODE    rgblight_mode_noeeprom(22)             //rgb mode for RL layer
 #define RGB_RL_LIGHT   rgblight_sethsv_noeeprom_red()         //rgb light for RL layer
-      
+
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-	
+
   /* Keymap BL: Base Layer (Default Layer)
    *
    * ,-----------------------------------------------------------.
@@ -140,7 +140,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         _______,   RGB_STA,   RGB_BRE,   RGB_RAI,   RGB_SWI,   _______,   _______,   RGB_SNA,   RGB_KNI,   RGB_GRA,   RGB_XMS,   _______,   _______,   _______,
         _______,   BL_DEC,    BL_TOGG,   BL_INC,    BL_STEP,   _______,   _______,   _______,   _______,   _______,   _______,   _______,   _______,
         _______,   _______,   _______,   _______,   MO(FL),    _______,   _______,   _______,   TO(BL),    _______),
-        
+
 
 };
 
@@ -175,25 +175,25 @@ void matrix_scan_user(void) {
   #ifdef RGBLIGHT_ENABLE
 
   static uint8_t old_layer = 1;
-  uint8_t new_layer = biton32(layer_state);
+  uint8_t new_layer = get_highest_layer(layer_state);
 
   if (old_layer != new_layer) {
     switch (new_layer) {
       case BL:
           RGB_BL_MODE;
-          RGB_BL_LIGHT;        
+          RGB_BL_LIGHT;
         break;
       case FL:
           RGB_FL_MODE;
-          RGB_FL_LIGHT;  
+          RGB_FL_LIGHT;
         break;
       case NL:
-          RGB_NL_MODE; 
-          RGB_NL_LIGHT; 
+          RGB_NL_MODE;
+          RGB_NL_LIGHT;
         break;
       case RL:
-          RGB_RL_MODE; 
-          RGB_RL_LIGHT;        
+          RGB_RL_MODE;
+          RGB_RL_LIGHT;
         break;
     }
 
diff --git a/keyboards/dz60/keymaps/marianas/customLogic.c b/keyboards/dz60/keymaps/marianas/customLogic.c
index f22bd882e9..03ba92fe92 100644
--- a/keyboards/dz60/keymaps/marianas/customLogic.c
+++ b/keyboards/dz60/keymaps/marianas/customLogic.c
@@ -11,7 +11,7 @@ static int16_t fnTimer = 0;
 
 layer_state_t layer_state_set_user(layer_state_t state)
 {
-  switch (biton32(state))
+  switch (get_highest_layer(state))
   {
     case QWERTY:
       rgblight_mode(9);
diff --git a/keyboards/dz60/keymaps/xtonhasvim/keymap.c b/keyboards/dz60/keymaps/xtonhasvim/keymap.c
index 9a482686d8..49bc20b576 100644
--- a/keyboards/dz60/keymaps/xtonhasvim/keymap.c
+++ b/keyboards/dz60/keymaps/xtonhasvim/keymap.c
@@ -73,7 +73,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
   static uint32_t last_state = 0;
 
   if(last_state != state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _CMD:
       user_led_on();
       break;
@@ -85,5 +85,3 @@ layer_state_t layer_state_set_user(layer_state_t state) {
   }
   return state;
 }
-
-
diff --git a/keyboards/dztech/dz60rgb/keymaps/matthewrobo/keymap.c b/keyboards/dztech/dz60rgb/keymaps/matthewrobo/keymap.c
index a12358c8d9..287496e17f 100644
--- a/keyboards/dztech/dz60rgb/keymaps/matthewrobo/keymap.c
+++ b/keyboards/dztech/dz60rgb/keymaps/matthewrobo/keymap.c
@@ -96,7 +96,7 @@ void rgb_matrix_indicators_user(void)
 	uint8_t this_led = host_keyboard_leds();
 
 	if (!g_suspend_state && rgb_matrix_config.enable) {
-		switch (biton32(layer_state)) {
+		switch (get_highest_layer(layer_state)) {
 		case _NAV:
 			if (this_led & (1 << USB_LED_NUM_LOCK)) {
 				rgb_matrix_set_color(13, 0xFF, 0x00, 0x00);
diff --git a/keyboards/dztech/dz60rgb/keymaps/mekanist/keymap.c b/keyboards/dztech/dz60rgb/keymaps/mekanist/keymap.c
index a7c6360568..6af35cf779 100644
--- a/keyboards/dztech/dz60rgb/keymaps/mekanist/keymap.c
+++ b/keyboards/dztech/dz60rgb/keymaps/mekanist/keymap.c
@@ -62,7 +62,7 @@ void rgb_matrix_indicators_user(void)
 	uint8_t this_led = host_keyboard_leds();
 
 	if (!g_suspend_state && rgb_matrix_config.enable) {
-		switch (biton32(layer_state)) {
+		switch (get_highest_layer(layer_state)) {
 		case _LAYER1:
 			rgb_matrix_layer_helper(0xFF, 0x00, 0x00); break;
 
@@ -78,7 +78,7 @@ void rgb_matrix_indicators_user(void)
 		rgb_matrix_set_color(40, 0xFF, 0xFF, 0xFF);
 	}
 
-	switch (biton32(layer_state)) {
+	switch (get_highest_layer(layer_state)) {
 	case _LAYER3:
 		if (this_led & (1 << USB_LED_NUM_LOCK)) {
 			rgb_matrix_set_color(13, 0xFF, 0x00, 0x00);
diff --git a/keyboards/dztech/dz60rgb/keymaps/perseid/keymap.c b/keyboards/dztech/dz60rgb/keymaps/perseid/keymap.c
index c13fcc1d35..daef7b271d 100644
--- a/keyboards/dztech/dz60rgb/keymaps/perseid/keymap.c
+++ b/keyboards/dztech/dz60rgb/keymaps/perseid/keymap.c
@@ -37,7 +37,7 @@ void rgb_matrix_layer_helper (uint8_t red, uint8_t green, uint8_t blue) {
 void rgb_matrix_indicators_user(void)
 {
 	if (!g_suspend_state) {
-		switch (biton32(layer_state)) {
+		switch (get_highest_layer(layer_state)) {
 		case _QWERTY:
 			rgb_matrix_layer_helper(0x00, 0x0F, 0xFF); break;
 
@@ -46,7 +46,7 @@ void rgb_matrix_indicators_user(void)
 		}
 	}
 
-	switch (biton32(layer_state)) {
+	switch (get_highest_layer(layer_state)) {
 	case _FNM:
 		rgb_matrix_set_color(0, 0x00, 0xFF, 0x00);
 		rgb_matrix_set_color(1, 0x00, 0x00, 0x00);
diff --git a/keyboards/dztech/dz65rgb/keymaps/catrielmuller/keymap.c b/keyboards/dztech/dz65rgb/keymaps/catrielmuller/keymap.c
index 8bd6069107..817c0fd2ff 100644
--- a/keyboards/dztech/dz65rgb/keymaps/catrielmuller/keymap.c
+++ b/keyboards/dztech/dz65rgb/keymaps/catrielmuller/keymap.c
@@ -238,5 +238,5 @@ void rgb_matrix_indicators_user(void) {
     }
 
     // Show Selected Layer
-    rgb_matrix_set_color(layers_leds_map[biton32(layer_state)], MAIN_COLOR[0], MAIN_COLOR[1], MAIN_COLOR[2]);
-}
\ No newline at end of file
+    rgb_matrix_set_color(layers_leds_map[get_highest_layer(layer_state)], MAIN_COLOR[0], MAIN_COLOR[1], MAIN_COLOR[2]);
+}
diff --git a/keyboards/dztech/dz65rgb/keymaps/drootz/keymap.c b/keyboards/dztech/dz65rgb/keymaps/drootz/keymap.c
index c313f467e3..2ebbddcef7 100644
--- a/keyboards/dztech/dz65rgb/keymaps/drootz/keymap.c
+++ b/keyboards/dztech/dz65rgb/keymaps/drootz/keymap.c
@@ -1,20 +1,20 @@
 #include QMK_KEYBOARD_H
 
 /**************** SOME GLOBALS *********************/
- 
+
 bool onMac = false;
 bool isLeader = false;
 bool isBlinking = false;
 bool isRecording = false;
 bool isPlaying = false;
-const float led_dim_ratio = 0.50; 
-static uint16_t blink_cycle_timer, 
-                blink_fade_in_timer, 
-                blink_fade_out_timer, 
+const float led_dim_ratio = 0.50;
+static uint16_t blink_cycle_timer,
+                blink_fade_in_timer,
+                blink_fade_out_timer,
                 macro_one_play_timer,
                 macro_two_play_timer,
                 macro_play_blink_timer = 2000;
-static uint8_t  fade_in_step_counter, 
+static uint8_t  fade_in_step_counter,
                 fade_out_step_counter,
                 blink_hsv_value;
 
@@ -26,13 +26,13 @@ Function to set color with hsv arguments
 - "val_ratio" is used to adjust brightness ratio
 */
 void rgb_matrix_set_color_hsv(uint8_t led, uint16_t hue, uint16_t sat, uint16_t val, float val_ratio) {
-    const uint8_t h = hue <= 255 ? hue : rgb_matrix_config.hsv.h;    
+    const uint8_t h = hue <= 255 ? hue : rgb_matrix_config.hsv.h;
     const uint8_t s = sat <= 255 ? sat : rgb_matrix_config.hsv.s;
     const uint8_t v = val <= 255 ? val * val_ratio : rgb_matrix_config.hsv.v * val_ratio;
     HSV hsv_in = {h, s, v};
     RGB rgb_out = hsv_to_rgb(hsv_in);
     rgb_matrix_set_color(led, rgb_out.r, rgb_out.g, rgb_out.b);
-} 
+}
 
 void reset_blink_cycle(void) {
     blink_cycle_timer = timer_read();
@@ -110,31 +110,31 @@ const layers_leds_map[] = {
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     [_MAIN] = LAYOUT_65_ansi(
-        KC_GESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_INS, 
-        KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_PGUP, 
-        KC_LEAD, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGDN, 
-        KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_DEL, 
+        KC_GESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_INS,
+        KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_PGUP,
+        KC_LEAD, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGDN,
+        KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_DEL,
         KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RALT, MO(_FN), KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
     ),
     [_MAC] = LAYOUT_65_ansi(
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_LALT, KC_LGUI, KC_TRNS, KC_TRNS, MO(_FN), KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
     ),
     [_FN] = LAYOUT_65_ansi(
-        DYN_REC_STOP, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NO, KC_NO, 
-        KC_TRNS, KC_MUTE, KC_VOLU, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, RGB_SAD, RGB_SAI, DYN_MACRO_PLAY2, DYN_REC_START2, 
-        KC_TRNS, KC_BRID, KC_VOLD, KC_BRIU, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, RGB_HUD, RGB_HUI, DYN_MACRO_PLAY1, DYN_REC_START1, 
-        KC_TRNS, TO(_MAIN), TO(_MAC), KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, RGB_SPD, RGB_SPI, KC_TRNS, RGB_VAI, KC_NO, 
+        DYN_REC_STOP, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NO, KC_NO,
+        KC_TRNS, KC_MUTE, KC_VOLU, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, RGB_SAD, RGB_SAI, DYN_MACRO_PLAY2, DYN_REC_START2,
+        KC_TRNS, KC_BRID, KC_VOLD, KC_BRIU, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, RGB_HUD, RGB_HUI, DYN_MACRO_PLAY1, DYN_REC_START1,
+        KC_TRNS, TO(_MAIN), TO(_MAC), KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, RGB_SPD, RGB_SPI, KC_TRNS, RGB_VAI, KC_NO,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_RMOD, RGB_VAD, RGB_MOD
     ),
-}; 
+};
 
 //**************** MATRIX SCANS *********************//
 
-void rgb_matrix_indicators_user(void) { 
+void rgb_matrix_indicators_user(void) {
 
     #ifdef RGB_MATRIX_ENABLE
 
@@ -144,7 +144,7 @@ void rgb_matrix_indicators_user(void) {
     /* CapsLock LED indicator */
     if (IS_HOST_LED_ON(USB_LED_CAPS_LOCK)) {
         rgb_matrix_set_color_hsv(30, 999, 0, led_constant_val, 0.75); // WHITE
-    } 
+    }
 
     /* Current layer LED indicator */
     rgb_matrix_set_color_hsv(layers_leds_map[get_highest_layer(layer_state)], 999, 0, led_constant_val, led_dim_ratio); // WHITE
@@ -155,7 +155,7 @@ void rgb_matrix_indicators_user(void) {
         rgb_matrix_set_color_hsv(30, 999, 999, 999, 1); // CONFIG
     } else {
         rgb_matrix_set_color_hsv(14, 999, 999, 999, led_dim_ratio); // CONFIG
-    }   
+    }
 
     /* Blinking LED indicator when recording Dynamic Macro */
     if (isRecording && isBlinking) {
@@ -174,7 +174,7 @@ void rgb_matrix_indicators_user(void) {
         }
     }
 
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
         case _FN:
             /* Dynamic Macro LED indicator */
             if (isRecording) {
@@ -188,12 +188,12 @@ void rgb_matrix_indicators_user(void) {
             /* Layer LED indicators */
             rgb_matrix_set_color_hsv(45, 999, 0, led_constant_val, led_dim_ratio); /* WHITE Layer _MAIN */
             rgb_matrix_set_color_hsv(46, 999, 0, led_constant_val, led_dim_ratio); /* WHITE Layer _MAC */
-            break; 
+            break;
     }
 
     #endif /* RGB_MATRIX */
 }
- 
+
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     bool pressed = record->event.pressed;
     if (pressed) {
@@ -202,12 +202,12 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                 onMac = true;
                 break;
             case TO(_MAIN):
-                onMac = false;      
+                onMac = false;
                 break;
         }
     }
     return true;
-} 
+}
 
 //**************** LEADER *********************//
 
@@ -244,7 +244,7 @@ const uint8_t french_accent_index[3] = {
     [_ACUTE] = 2
 };
 
-/* 
+/*
 This represent unicode decimal values
 Each index will be mapped to numpad keycode to out put the correct sequence
 All codes in this array should be of size 3
@@ -272,8 +272,8 @@ const uint8_t french_decimal_unicodes[5][3][2] = { /*[Letter][Accent][Case]*/
         }
     },{
         {
-            140,    // î    
-            206     // Î 
+            140,    // î
+            206     // Î
         }
     },{
         {
@@ -306,7 +306,7 @@ This is designed and work on an English language keyboard setting on both Window
 => accept french_letter and french_accent enum's as argument
 */
 void send_french_accent(uint8_t letter, uint8_t accent) {
-    
+
     bool isCaps;
     uint8_t decimal_unicode_in;
     uint8_t decimal_unicode_size = 3;
@@ -330,7 +330,7 @@ void send_french_accent(uint8_t letter, uint8_t accent) {
     };
 
     /*
-    Function to tap the correct keycodes in sequence for the 
+    Function to tap the correct keycodes in sequence for the
     "Windows Alt Code" requested, aka Decimal Unicodes
     */
     void tap_win_alt_code(void) {
@@ -341,7 +341,7 @@ void send_french_accent(uint8_t letter, uint8_t accent) {
             tap_code(numpad_key_map[decimal_unicode_out[i]]);
         }
     }
-    
+
     isCaps = IS_HOST_LED_ON(USB_LED_CAPS_LOCK) ? true : false;
 
     if (onMac) {
@@ -372,7 +372,7 @@ void send_french_accent(uint8_t letter, uint8_t accent) {
 
 /*Couple functions used to output the same macro on two different sequences*/
 
-/* (|) */ 
+/* (|) */
 void ldrkey_send_paranthesis_wrap_ini(void) {
     SEND_STRING("()" SS_TAP(X_LEFT));
 }
@@ -382,7 +382,7 @@ void ldrkey_send_paranthesis_wrap_word(void) {
     onMac ? SEND_STRING(SS_LALT(SS_TAP(X_LEFT)) "(" SS_LALT(SS_TAP(X_RIGHT)) ")") : SEND_STRING(SS_LCTL(SS_TAP(X_LEFT)) "(" SS_LCTL(SS_TAP(X_RIGHT)) ")");
 }
 
-/* (selection) */ 
+/* (selection) */
 void ldrkey_send_paranthesis_wrap_selection(void) {
     onMac ? SEND_STRING(SS_LGUI(SS_TAP(X_X)) "()" SS_TAP(X_LEFT) SS_LGUI(SS_TAP(X_V)) SS_TAP(X_RIGHT)) : SEND_STRING(SS_LCTL(SS_TAP(X_X)) "()" SS_TAP(X_LEFT) SS_LCTL(SS_TAP(X_V)) SS_TAP(X_RIGHT));
 }
@@ -419,9 +419,9 @@ void ldrkey_send_curlybrace_wrap_selection(void) {
 
 LEADER_EXTERNS();
 
-void matrix_scan_user(void) 
+void matrix_scan_user(void)
 {
-    LEADER_DICTIONARY() 
+    LEADER_DICTIONARY()
     {
         leading = false;
         leader_end();
@@ -476,49 +476,49 @@ void matrix_scan_user(void)
             tap_code(KC_CAPS);
         }
         /*  ±       => LdrKey > = > - */
-        SEQ_TWO_KEYS(KC_EQL, KC_MINS) { 
-            onMac ? SEND_STRING(SS_LALT(SS_LSFT(SS_TAP(X_EQL)))) : SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_P2) SS_TAP(X_P4) SS_TAP(X_P1) SS_UP(X_LALT)); 
+        SEQ_TWO_KEYS(KC_EQL, KC_MINS) {
+            onMac ? SEND_STRING(SS_LALT(SS_LSFT(SS_TAP(X_EQL)))) : SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_P2) SS_TAP(X_P4) SS_TAP(X_P1) SS_UP(X_LALT));
         }
         /*  ≤       => LdrKey > - > = */
-        SEQ_TWO_KEYS(KC_MINS, KC_EQL) { 
-            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_COMM))) : SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_P2) SS_TAP(X_P4) SS_TAP(X_P3) SS_UP(X_LALT)); 
+        SEQ_TWO_KEYS(KC_MINS, KC_EQL) {
+            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_COMM))) : SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_P2) SS_TAP(X_P4) SS_TAP(X_P3) SS_UP(X_LALT));
         }
         /*  ≥       => LdrKey > = > = */
-        SEQ_TWO_KEYS(KC_EQL, KC_EQL) { 
-            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_DOT))) : SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_P2) SS_TAP(X_P4) SS_TAP(X_P2) SS_UP(X_LALT)); 
+        SEQ_TWO_KEYS(KC_EQL, KC_EQL) {
+            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_DOT))) : SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_P2) SS_TAP(X_P4) SS_TAP(X_P2) SS_UP(X_LALT));
         }
         /*  <=      => LdrKey > , > , */
-        SEQ_TWO_KEYS(KC_COMM, KC_COMM) { 
-            SEND_STRING(SS_LSFT(SS_TAP(X_COMM)) SS_TAP(X_SPC) SS_TAP(X_EQL) SS_TAP(X_LEFT) SS_TAP(X_BSPC) SS_TAP(X_RIGHT)); 
+        SEQ_TWO_KEYS(KC_COMM, KC_COMM) {
+            SEND_STRING(SS_LSFT(SS_TAP(X_COMM)) SS_TAP(X_SPC) SS_TAP(X_EQL) SS_TAP(X_LEFT) SS_TAP(X_BSPC) SS_TAP(X_RIGHT));
         }
         /*  =>      => LdrKey > . > . */
-        SEQ_TWO_KEYS(KC_DOT, KC_DOT) { 
-            SEND_STRING("=>"); 
+        SEQ_TWO_KEYS(KC_DOT, KC_DOT) {
+            SEND_STRING("=>");
         }
         /*  ", "    => LdrKey > " " */
-        SEQ_ONE_KEY(KC_SPC) { 
-            SEND_STRING(", "); 
+        SEQ_ONE_KEY(KC_SPC) {
+            SEND_STRING(", ");
         }
         /*  ". "    => LdrKey > " " > " " */
-        SEQ_TWO_KEYS(KC_SPC, KC_SPC) { 
-            SEND_STRING(". "); 
+        SEQ_TWO_KEYS(KC_SPC, KC_SPC) {
+            SEND_STRING(". ");
         }
         /*  Backward delete current word (on cursor) */
-        SEQ_TWO_KEYS(KC_BSPC, KC_BSPC) { 
-            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_RIGHT)) SS_LALT(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC)) : SEND_STRING(SS_LCTL(SS_TAP(X_RIGHT)) SS_LCTL(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC)); 
+        SEQ_TWO_KEYS(KC_BSPC, KC_BSPC) {
+            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_RIGHT)) SS_LALT(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC)) : SEND_STRING(SS_LCTL(SS_TAP(X_RIGHT)) SS_LCTL(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC));
         }
         /*  Previous word delete */
-        SEQ_ONE_KEY(KC_BSPC) { 
-            onMac ? SEND_STRING(SS_LALT(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC)) : SEND_STRING(SS_LCTL(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC)); 
+        SEQ_ONE_KEY(KC_BSPC) {
+            onMac ? SEND_STRING(SS_LALT(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC)) : SEND_STRING(SS_LCTL(SS_LSFT(SS_TAP(X_LEFT))) SS_TAP(X_BSPC));
         }
         /*  Forward delete current word (on cursor) */
-        SEQ_TWO_KEYS(KC_DEL, KC_DEL) { 
+        SEQ_TWO_KEYS(KC_DEL, KC_DEL) {
 
-            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_LEFT)) SS_LALT(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL)) : SEND_STRING(SS_LCTL(SS_TAP(X_LEFT)) SS_LCTL(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL)); 
+            onMac ? SEND_STRING(SS_LALT(SS_TAP(X_LEFT)) SS_LALT(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL)) : SEND_STRING(SS_LCTL(SS_TAP(X_LEFT)) SS_LCTL(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL));
         }
         /*  Next word delete */
-        SEQ_ONE_KEY(KC_DEL) { 
-            onMac ? SEND_STRING(SS_LALT(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL)): SEND_STRING(SS_LCTL(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL)); 
+        SEQ_ONE_KEY(KC_DEL) {
+            onMac ? SEND_STRING(SS_LALT(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL)): SEND_STRING(SS_LCTL(SS_LSFT(SS_TAP(X_RIGHT))) SS_TAP(X_DEL));
         }
         /*  `   => LdrKey > Escape */
         SEQ_ONE_KEY(KC_GESC) {
@@ -548,7 +548,7 @@ void matrix_scan_user(void)
         SEQ_ONE_KEY(KC_Q) {
             onMac ? SEND_STRING(SS_LGUI(SS_TAP(X_Q))) : SEND_STRING(SS_LALT(SS_TAP(X_F4)));
         }
-        /*  "           => LdrKey > ' */ 
+        /*  "           => LdrKey > ' */
         SEQ_ONE_KEY(KC_QUOT) {
             SEND_STRING("\"");
         }
@@ -657,48 +657,48 @@ void matrix_scan_user(void)
             ldrkey_send_curlybrace_wrap_selection();
         }
         /*  Select everything on this line before cursor => LdrKey > Left */
-        SEQ_ONE_KEY(KC_LEFT) { 
+        SEQ_ONE_KEY(KC_LEFT) {
             onMac ? SEND_STRING(SS_LSFT(SS_LGUI(SS_TAP(X_LEFT)))) : SEND_STRING(SS_LSFT(SS_TAP(X_HOME)));
         }
         /*  Select everything on this line after cursor  => LdrKey > Right */
-        SEQ_ONE_KEY(KC_RIGHT) { 
+        SEQ_ONE_KEY(KC_RIGHT) {
             onMac ? SEND_STRING(SS_LSFT(SS_LGUI(SS_TAP(X_RIGHT)))) : SEND_STRING(SS_LSFT(SS_TAP(X_END)));
         }
         /*  Select everything on this line before cursor and bring on previous line => LdrKey > Left > Left */
-        SEQ_TWO_KEYS(KC_LEFT, KC_LEFT) { 
-            onMac ? SEND_STRING(SS_LSFT(SS_TAP(X_UP) SS_LGUI(SS_TAP(X_RIGHT)))) : SEND_STRING(SS_LSFT(SS_TAP(X_UP) SS_TAP(X_END))); 
+        SEQ_TWO_KEYS(KC_LEFT, KC_LEFT) {
+            onMac ? SEND_STRING(SS_LSFT(SS_TAP(X_UP) SS_LGUI(SS_TAP(X_RIGHT)))) : SEND_STRING(SS_LSFT(SS_TAP(X_UP) SS_TAP(X_END)));
         }
         /*  Select everything on this line  => LdrKey > Right > Left */
-        SEQ_TWO_KEYS(KC_RIGHT, KC_LEFT) { 
-            onMac ? SEND_STRING(SS_LGUI(SS_TAP(X_RIGHT) SS_LSFT(SS_LGUI(SS_TAP(X_LEFT))))) : SEND_STRING(SS_TAP(X_END) SS_LSFT(SS_TAP(X_HOME))); 
+        SEQ_TWO_KEYS(KC_RIGHT, KC_LEFT) {
+            onMac ? SEND_STRING(SS_LGUI(SS_TAP(X_RIGHT) SS_LSFT(SS_LGUI(SS_TAP(X_LEFT))))) : SEND_STRING(SS_TAP(X_END) SS_LSFT(SS_TAP(X_HOME)));
         }
         /*  Select 1x Page Up on the page before the cursor  => LdrKey > Up */
-        SEQ_ONE_KEY(KC_UP) { 
+        SEQ_ONE_KEY(KC_UP) {
             SEND_STRING(SS_LSFT(SS_TAP(X_PGUP)));
         }
         /*  Select 1x Page Down on the page after the cursor => LdrKey > Down */
-        SEQ_ONE_KEY(KC_DOWN) { 
-            SEND_STRING(SS_LSFT(SS_TAP(X_PGDN)));   
+        SEQ_ONE_KEY(KC_DOWN) {
+            SEND_STRING(SS_LSFT(SS_TAP(X_PGDN)));
         }
         /*  Select everything on the page before the cursor => LdrKey > Up > Up */
-        SEQ_TWO_KEYS(KC_UP, KC_UP) { 
+        SEQ_TWO_KEYS(KC_UP, KC_UP) {
             onMac ? SEND_STRING(SS_LSFT(SS_LGUI(SS_TAP(X_UP)))) : SEND_STRING(SS_LSFT(SS_LCTL(SS_TAP(X_HOME))));
         }
         /*  Select everything on the page after the cursor => LdrKey > Down > Down */
-        SEQ_TWO_KEYS(KC_DOWN, KC_DOWN) { 
+        SEQ_TWO_KEYS(KC_DOWN, KC_DOWN) {
             onMac ? SEND_STRING(SS_LSFT(SS_LGUI(SS_TAP(X_DOWN)))) : SEND_STRING(SS_LSFT(SS_LCTL(SS_TAP(X_END))));
         }
         /* HELPER => spit out the url of the layout description page on github */
-        SEQ_FIVE_KEYS(KC_GESC, KC_GESC, KC_GESC, KC_GESC, KC_GESC) { 
+        SEQ_FIVE_KEYS(KC_GESC, KC_GESC, KC_GESC, KC_GESC, KC_GESC) {
             SEND_STRING("https://github.com/qmk/qmk_firmware/tree/master/keyboards/dztech/dz65rgb/keymaps/drootz");
         }
         /*  google.ca   => LdrKey > G > G */
-        SEQ_TWO_KEYS(KC_G, KC_G) { 
-            SEND_STRING("https://google.ca" SS_TAP(X_ENT)); 
+        SEQ_TWO_KEYS(KC_G, KC_G) {
+            SEND_STRING("https://google.ca" SS_TAP(X_ENT));
         }
         /*  @gmail  => LdrKey > M > L > T */
-        SEQ_THREE_KEYS(KC_M, KC_L, KC_T) { 
-            SEND_STRING("mailto." SS_TAP(X_D) SS_TAP(X_A) SS_TAP(X_N) SS_TAP(X_I) SS_TAP(X_E) SS_TAP(X_L) SS_TAP(X_R) SS_TAP(X_A) SS_TAP(X_C) SS_TAP(X_I) SS_TAP(X_N) SS_TAP(X_E) "@gmail.com"); 
+        SEQ_THREE_KEYS(KC_M, KC_L, KC_T) {
+            SEND_STRING("mailto." SS_TAP(X_D) SS_TAP(X_A) SS_TAP(X_N) SS_TAP(X_I) SS_TAP(X_E) SS_TAP(X_L) SS_TAP(X_R) SS_TAP(X_A) SS_TAP(X_C) SS_TAP(X_I) SS_TAP(X_N) SS_TAP(X_E) "@gmail.com");
         }
         /*  Show Desktop            => LdrKey > D */
         SEQ_ONE_KEY(KC_D) {
diff --git a/keyboards/dztech/dz65rgb/keymaps/matthewrobo/keymap.c b/keyboards/dztech/dz65rgb/keymaps/matthewrobo/keymap.c
index 00915a9b4f..0c7bfbbb48 100644
--- a/keyboards/dztech/dz65rgb/keymaps/matthewrobo/keymap.c
+++ b/keyboards/dztech/dz65rgb/keymaps/matthewrobo/keymap.c
@@ -91,7 +91,7 @@ void rgb_matrix_indicators_user(void)
 	uint8_t this_led = host_keyboard_leds();
 
 	if (!g_suspend_state && rgb_matrix_config.enable) {
-		switch (biton32(layer_state)) {
+		switch (get_highest_layer(layer_state)) {
 		case _NAV:
 			if (IS_LED_ON(this_led, USB_LED_NUM_LOCK)) {
 				rgb_matrix_set_color(17, 0xFF, 0x00, 0x00);
diff --git a/keyboards/ergodox_ez/keymaps/bepo_tm_style/keymap.c b/keyboards/ergodox_ez/keymaps/bepo_tm_style/keymap.c
index a5b107baae..91798ab188 100755
--- a/keyboards/ergodox_ez/keymaps/bepo_tm_style/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/bepo_tm_style/keymap.c
@@ -190,7 +190,7 @@ static bool is_macro1_recording = false;
 // The current set of active layers (as a bitmask).
 // There is a global 'layer_state' variable but it is set after the call
 // to layer_state_set_user().
-static uint32_t current_layer_state = 0;
+static layer_state_t current_layer_state = 0;
 layer_state_t layer_state_set_user(layer_state_t state);
 
 // Method called at the end of the tap dance on the TAP_MACRO key. That key is
diff --git a/keyboards/ergodox_ez/keymaps/blakedietz/keymap.c b/keyboards/ergodox_ez/keymaps/blakedietz/keymap.c
index 5c08d30727..67c50eb129 100644
--- a/keyboards/ergodox_ez/keymaps/blakedietz/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/blakedietz/keymap.c
@@ -200,7 +200,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
@@ -262,4 +262,3 @@ void matrix_scan_user(void) {
 //  }
 //  return true;
 //}
-
diff --git a/keyboards/ergodox_ez/keymaps/bpruitt-goddard/keymap.c b/keyboards/ergodox_ez/keymaps/bpruitt-goddard/keymap.c
index 229ece0d74..eff7f111b4 100644
--- a/keyboards/ergodox_ez/keymaps/bpruitt-goddard/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/bpruitt-goddard/keymap.c
@@ -98,7 +98,7 @@ static bool is_macro1_recording = false;
 // The current set of active layers (as a bitmask).
 // There is a global 'layer_state' variable but it is set after the call
 // to layer_state_set_user().
-static uint32_t current_layer_state = 0;
+static layer_state_t current_layer_state = 0;
 layer_state_t layer_state_set_user(layer_state_t state);
 
 // Method called at the end of the tap dance on the TAP_MACRO key. That key is
diff --git a/keyboards/ergodox_ez/keymaps/default_osx/keymap.c b/keyboards/ergodox_ez/keymaps/default_osx/keymap.c
index 73b1077b83..3ab66078fe 100644
--- a/keyboards/ergodox_ez/keymaps/default_osx/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/default_osx/keymap.c
@@ -141,7 +141,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   ergodox_board_led_off();
   ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/dvorak_42_key/keymap.c b/keyboards/ergodox_ez/keymaps/dvorak_42_key/keymap.c
index fab2977356..ff9ae77bdd 100644
--- a/keyboards/ergodox_ez/keymaps/dvorak_42_key/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/dvorak_42_key/keymap.c
@@ -725,7 +725,7 @@ void led_set_user(uint8_t usb_led) {
 
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_2_off();
diff --git a/keyboards/ergodox_ez/keymaps/hacker_dvorak/user/layer_set_state_user.c b/keyboards/ergodox_ez/keymaps/hacker_dvorak/user/layer_set_state_user.c
index fd022681b0..ed407def79 100644
--- a/keyboards/ergodox_ez/keymaps/hacker_dvorak/user/layer_set_state_user.c
+++ b/keyboards/ergodox_ez/keymaps/hacker_dvorak/user/layer_set_state_user.c
@@ -1,6 +1,6 @@
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    uint8_t layer = biton32(state);
+    uint8_t layer = get_highest_layer(state);
 
     switch (layer) {
         case DVORAK:
diff --git a/keyboards/ergodox_ez/keymaps/heartrobotninja/keymap.c b/keyboards/ergodox_ez/keymaps/heartrobotninja/keymap.c
index b6edc17532..91884c8e76 100644
--- a/keyboards/ergodox_ez/keymaps/heartrobotninja/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/heartrobotninja/keymap.c
@@ -370,7 +370,7 @@ LEADER_EXTERNS();
 void matrix_scan_user(void)
 {
 
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   if (keyboard_report->mods & MOD_BIT(KC_LSFT) ||
       ((get_oneshot_mods() & MOD_BIT(KC_LSFT)) &&
@@ -677,4 +677,4 @@ void matrix_init_user(void)
   wait_ms(1000);
 
   rgblight_effect_knight(50);
-}
\ No newline at end of file
+}
diff --git a/keyboards/ergodox_ez/keymaps/kou/keymap.c b/keyboards/ergodox_ez/keymaps/kou/keymap.c
index c8d0a6b5dd..01427c2d2d 100644
--- a/keyboards/ergodox_ez/keymaps/kou/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/kou/keymap.c
@@ -284,7 +284,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/lukaus/keymap.c b/keyboards/ergodox_ez/keymaps/lukaus/keymap.c
index 5d797beb18..542e123db3 100644
--- a/keyboards/ergodox_ez/keymaps/lukaus/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/lukaus/keymap.c
@@ -813,7 +813,7 @@ case RU_7:
 
 layer_state_t layer_state_set_user(layer_state_t state) {
 
-    uint8_t layer = biton32(state);
+    uint8_t layer = get_highest_layer(state);
 
   //  ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/matrixman/keymap.c b/keyboards/ergodox_ez/keymaps/matrixman/keymap.c
index 10b6567cdb..bb6ba5ae34 100644
--- a/keyboards/ergodox_ez/keymaps/matrixman/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/matrixman/keymap.c
@@ -165,7 +165,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/nathanvercaemert/keymap.c b/keyboards/ergodox_ez/keymaps/nathanvercaemert/keymap.c
index e31391a674..a3c2176951 100644
--- a/keyboards/ergodox_ez/keymaps/nathanvercaemert/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/nathanvercaemert/keymap.c
@@ -218,7 +218,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-  uint8_t layer = biton32(state);
+  uint8_t layer = get_highest_layer(state);
   ergodox_board_led_off();
   ergodox_right_led_1_off();
   ergodox_right_led_2_off();
@@ -431,4 +431,3 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     }
     return true;
 }
-
diff --git a/keyboards/ergodox_ez/keymaps/nfriend/keymap.c b/keyboards/ergodox_ez/keymaps/nfriend/keymap.c
index 1d12093bab..ba578dd1c5 100644
--- a/keyboards/ergodox_ez/keymaps/nfriend/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/nfriend/keymap.c
@@ -1057,7 +1057,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    uint8_t layer = biton32(state);
+    uint8_t layer = get_highest_layer(state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/profet_80/keymap.c b/keyboards/ergodox_ez/keymaps/profet_80/keymap.c
index 85455fa9d9..6f602e828e 100644
--- a/keyboards/ergodox_ez/keymaps/profet_80/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/profet_80/keymap.c
@@ -157,7 +157,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/pvinis/keymap.c b/keyboards/ergodox_ez/keymaps/pvinis/keymap.c
index 024cefd270..c69621ab98 100644
--- a/keyboards/ergodox_ez/keymaps/pvinis/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/pvinis/keymap.c
@@ -245,11 +245,11 @@ void keyboard_post_init_user_keymap(void) {
 }
 
 // light up leds based on the layer
-uint32_t layer_state_set_user_keymap(uint32_t state) {
+layer_state_t layer_state_set_user_keymap(layer_state_t state) {
     ergodox_right_led_1_off();
     ergodox_right_led_2_off();
     ergodox_right_led_3_off();
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case LR_SYSCTL:
             ergodox_right_led_3_on();  // blue
             break;
@@ -306,7 +306,7 @@ uint32_t layer_state_set_user_keymap(uint32_t state) {
 
 // SYSCTL on first tap, MOUSE ON second tap
 // void layers_dance_finished(qk_tap_dance_state_t *state, void *user_data) {
-//   uint8_t layer = biton32(layer_state);
+//   uint8_t layer = get_highest_layer(layer_state);
 
 //   switch(state->count) {
 //   case 1:
diff --git a/keyboards/ergodox_ez/keymaps/rgb_layer/keymap.c b/keyboards/ergodox_ez/keymaps/rgb_layer/keymap.c
index 3e607edb39..595f3b4ee1 100644
--- a/keyboards/ergodox_ez/keymaps/rgb_layer/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/rgb_layer/keymap.c
@@ -228,7 +228,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
   ergodox_right_led_1_off();
   ergodox_right_led_2_off();
   ergodox_right_led_3_off();
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case SYMB:
         ergodox_right_led_1_on();
         if (user_config.rgb_layer_change) { rgblight_sethsv_noeeprom_red(); rgblight_mode_noeeprom(1); }
@@ -268,4 +268,3 @@ layer_state_t layer_state_set_user(layer_state_t state) {
     }
   return state;
 }
-
diff --git a/keyboards/ergodox_ez/keymaps/rishka/keymap.c b/keyboards/ergodox_ez/keymaps/rishka/keymap.c
index 102803e512..0d6ac9fe95 100644
--- a/keyboards/ergodox_ez/keymaps/rishka/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/rishka/keymap.c
@@ -138,7 +138,7 @@ void keyboard_post_init_user(void) {
 };
 
 // Runs whenever there is a layer state change.
-uint32_t layer_state_set_user(layer_state_t state) {
+layer_state_t layer_state_set_user(layer_state_t state) {
   ergodox_board_led_off();
   ergodox_right_led_1_off();
   ergodox_right_led_2_off();
diff --git a/keyboards/ergodox_ez/keymaps/skug/keymap.c b/keyboards/ergodox_ez/keymaps/skug/keymap.c
index 1446ea7466..04aa6a99fd 100644
--- a/keyboards/ergodox_ez/keymaps/skug/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/skug/keymap.c
@@ -228,7 +228,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/smurmann/keymap.c b/keyboards/ergodox_ez/keymaps/smurmann/keymap.c
index 42ac13775f..c8ddc23a8b 100644
--- a/keyboards/ergodox_ez/keymaps/smurmann/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/smurmann/keymap.c
@@ -139,7 +139,7 @@ void matrix_init_user(void) {
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-   uint8_t layer = biton32(layer_state);
+   uint8_t layer = get_highest_layer(layer_state);
 
    if(layer == 1)
    {
@@ -157,7 +157,7 @@ void matrix_scan_user(void) {
    }
 
   if(keyboard_report->mods & MOD_BIT(KC_LSFT))
-  { 
+  {
       ergodox_right_led_1_set (LED_BRIGHTNESS_HI);
       ergodox_right_led_1_on ();
   } else {
@@ -182,7 +182,7 @@ void matrix_scan_user(void) {
   }
 
   if(keyboard_report->mods & MOD_BIT(KC_LCTRL))
-  { 
+  {
       ergodox_right_led_3_set (LED_BRIGHTNESS_HI);
       ergodox_right_led_3_on ();
   } else {
@@ -195,7 +195,7 @@ void matrix_scan_user(void) {
 };
 
 void led_set_user(uint8_t usb_led){
- if (usb_led & (1 << USB_LED_CAPS_LOCK)) 
+ if (usb_led & (1 << USB_LED_CAPS_LOCK))
    {
       capsOn = true;
    }else {
diff --git a/keyboards/ergodox_ez/keymaps/steno/keymap.c b/keyboards/ergodox_ez/keymaps/steno/keymap.c
index 080d3f6cef..96218bbe99 100644
--- a/keyboards/ergodox_ez/keymaps/steno/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/steno/keymap.c
@@ -228,7 +228,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/testing/keymap.c b/keyboards/ergodox_ez/keymaps/testing/keymap.c
index 5c1fc4af28..3aee63ddf1 100644
--- a/keyboards/ergodox_ez/keymaps/testing/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/testing/keymap.c
@@ -62,7 +62,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
 layer_state_t layer_state_set_user(layer_state_t state) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/keymaps/vim/keymap.c b/keyboards/ergodox_ez/keymaps/vim/keymap.c
index 948f2b4794..c1c037ef23 100644
--- a/keyboards/ergodox_ez/keymaps/vim/keymap.c
+++ b/keyboards/ergodox_ez/keymaps/vim/keymap.c
@@ -330,7 +330,7 @@ void matrix_init_user(void) {
 };
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ergodox_ez/util/compile_keymap.py b/keyboards/ergodox_ez/util/compile_keymap.py
index b447ecaf5c..310512c920 100755
--- a/keyboards/ergodox_ez/util/compile_keymap.py
+++ b/keyboards/ergodox_ez/util/compile_keymap.py
@@ -27,29 +27,34 @@ PY2 = sys.version_info.major == 2
 if PY2:
     chr = unichr
 
-
 KEYBOARD_LAYOUTS = {
     # These map positions in the parsed layout to
     # positions in the KEYMAP MATRIX
     'ergodox_ez': [
-        [ 0,  1,  2,  3,  4,  5,  6],  [38, 39, 40, 41, 42, 43, 44],
-        [ 7,  8,  9, 10, 11, 12, 13],  [45, 46, 47, 48, 49, 50, 51],
-        [14, 15, 16, 17, 18, 19    ],  [    52, 53, 54, 55, 56, 57],
-        [20, 21, 22, 23, 24, 25, 26],  [58, 59, 60, 61, 62, 63, 64],
-        [27, 28, 29, 30, 31        ],  [        65, 66, 67, 68, 69],
-        [                    32, 33],  [70, 71                    ],
-        [                        34],  [72                        ],
-        [                35, 36, 37],  [73, 74, 75                ],
+        [0, 1, 2, 3, 4, 5, 6],
+        [38, 39, 40, 41, 42, 43, 44],
+        [7, 8, 9, 10, 11, 12, 13],
+        [45, 46, 47, 48, 49, 50, 51],
+        [14, 15, 16, 17, 18, 19],
+        [52, 53, 54, 55, 56, 57],
+        [20, 21, 22, 23, 24, 25, 26],
+        [58, 59, 60, 61, 62, 63, 64],
+        [27, 28, 29, 30, 31],
+        [65, 66, 67, 68, 69],
+        [32, 33],
+        [70, 71],
+        [34],
+        [72],
+        [35, 36, 37],
+        [73, 74, 75],
     ]
 }
 
-ROW_INDENTS = {
-    'ergodox_ez': [0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 5, 0, 6, 0, 4, 0]
-}
+ROW_INDENTS = {'ergodox_ez': [0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 5, 0, 6, 0, 4, 0]}
 
 BLANK_LAYOUTS = [
-# Compact Layout
-"""
+    # Compact Layout
+    """
 .------------------------------------.------------------------------------.
 |     |    |    |    |    |    |     |     |    |    |    |    |    |     |
 !-----+----+----+----+----+----------!-----+----+----+----+----+----+-----!
@@ -70,8 +75,8 @@ BLANK_LAYOUTS = [
                   '-----------------' '-----------------'
 """,
 
-# Wide Layout
-"""
+    # Wide Layout
+    """
 .---------------------------------------------. .---------------------------------------------.
 |       |     |     |     |     |     |       | !       |     |     |     |     |     |       |
 !-------+-----+-----+-----+-----+-------------! !-------+-----+-----+-----+-----+-----+-------!
@@ -93,26 +98,22 @@ BLANK_LAYOUTS = [
 """,
 ]
 
-
 DEFAULT_CONFIG = {
-    "keymaps_includes": [
-        "keymap_common.h",
-    ],
+    "keymaps_includes": ["keymap_common.h",],
     'filler': "-+.'!:x",
     'separator': "|",
     'default_key_prefix': ["KC_"],
 }
 
-
 SECTIONS = [
     'layout_config',
     'layers',
 ]
 
-
 #       Markdown Parsing
 
-ONELINE_COMMENT_RE = re.compile(r"""
+ONELINE_COMMENT_RE = re.compile(
+    r"""
     ^                       # comment must be at the start of the line
     \s*                     # arbitrary whitespace
     //                      # start of the comment
@@ -121,22 +122,26 @@ ONELINE_COMMENT_RE = re.compile(r"""
 """, re.MULTILINE | re.VERBOSE
 )
 
-INLINE_COMMENT_RE = re.compile(r"""
+INLINE_COMMENT_RE = re.compile(
+    r"""
     ([\,\"\[\]\{\}\d])      # anythig that might end a expression
     \s+                     # comment must be preceded by whitespace
     //                      # start of the comment
     \s                      # and succeded by whitespace
     (?:[^\"\]\}\{\[]*)      # the comment (except things which might be json)
     $                       # until the end of line
-""", re.MULTILINE | re.VERBOSE)
+""", re.MULTILINE | re.VERBOSE
+)
 
-TRAILING_COMMA_RE = re.compile(r"""
+TRAILING_COMMA_RE = re.compile(
+    r"""
     ,                       # the comma
     (?:\s*)                 # arbitrary whitespace
     $                       # only works if the trailing comma is followed by newline
     (\s*)                   # arbitrary whitespace
     ([\]\}])                # end of an array or object
-""", re.MULTILINE | re.VERBOSE)
+""", re.MULTILINE | re.VERBOSE
+)
 
 
 def loads(raw_data):
@@ -178,9 +183,7 @@ def parse_config(path):
     def end_section():
         if section['start_line'] >= 0:
             if section['name'] == 'layout_config':
-                config.update(loads("\n".join(
-                    section['code_lines']
-                )))
+                config.update(loads("\n".join(section['code_lines'])))
             elif section['sub_name'].startswith('layer'):
                 layer_name = section['sub_name']
                 config['layer_lines'][layer_name] = section['code_lines']
@@ -215,6 +218,7 @@ def parse_config(path):
     assert 'layout' in config
     return config
 
+
 #       header file parsing
 
 IF0_RE = re.compile(r"""
@@ -224,7 +228,6 @@ IF0_RE = re.compile(r"""
     #endif
 """, re.MULTILINE | re.DOTALL | re.VERBOSE)
 
-
 COMMENT_RE = re.compile(r"""
     /\*
     .*?
@@ -244,6 +247,7 @@ def regex_partial(re_str_fmt, flags):
     def partial(*args, **kwargs):
         re_str = re_str_fmt.format(*args, **kwargs)
         return re.compile(re_str, flags)
+
     return partial
 
 
@@ -256,7 +260,6 @@ KEYDEF_REP = regex_partial(r"""
     )                   # capture group end
 """, re.MULTILINE | re.DOTALL | re.VERBOSE)
 
-
 ENUM_RE = re.compile(r"""
     (
         enum
@@ -268,7 +271,6 @@ ENUM_RE = re.compile(r"""
     )                   # capture group end
 """, re.MULTILINE | re.DOTALL | re.VERBOSE)
 
-
 ENUM_KEY_REP = regex_partial(r"""
     (
         {}              # the prefixes
@@ -309,14 +311,13 @@ def parse_valid_keys(config, out_path):
         include_path = os.path.join(dirpath, include)
         if os.path.exists(include_path):
             header_data = read_header_file(include_path)
-            valid_keycodes.update(
-                parse_keydefs(config, header_data)
-            )
+            valid_keycodes.update(parse_keydefs(config, header_data))
     return valid_keycodes
 
 
 #       Keymap Parsing
 
+
 def iter_raw_codes(layer_lines, filler, separator):
     filler_re = re.compile("[" + filler + " ]")
     for line in layer_lines:
@@ -346,28 +347,21 @@ LAYER_CHANGE_RE = re.compile(r"""
     (DF|TG|MO)\(\d+\)
 """, re.VERBOSE)
 
-
 MACRO_RE = re.compile(r"""
     M\(\w+\)
 """, re.VERBOSE)
 
-
 UNICODE_RE = re.compile(r"""
     U[0-9A-F]{4}
 """, re.VERBOSE)
 
-
 NON_CODE = re.compile(r"""
     ^[^A-Z0-9_]$
 """, re.VERBOSE)
 
 
 def parse_uni_code(raw_code):
-    macro_id = "UC_" + (
-        unicodedata.name(raw_code)
-        .replace(" ", "_")
-        .replace("-", "_")
-    )
+    macro_id = "UC_" + (unicodedata.name(raw_code).replace(" ", "_").replace("-", "_"))
     code = "M({})".format(macro_id)
     uc_hex = "{:04X}".format(ord(raw_code))
     return code, macro_id, uc_hex
@@ -407,19 +401,13 @@ def parse_code(raw_code, key_prefixes, valid_keycodes):
 
 def parse_keymap(config, key_indexes, layer_lines, valid_keycodes):
     keymap = {}
-    raw_codes = list(iter_raw_codes(
-        layer_lines, config['filler'], config['separator']
-    ))
+    raw_codes = list(iter_raw_codes(layer_lines, config['filler'], config['separator']))
     indexed_codes = iter_indexed_codes(raw_codes, key_indexes)
     key_prefixes = config['key_prefixes']
     for raw_code, key_index, row_index in indexed_codes:
-        code, macro_id, uc_hex = parse_code(
-            raw_code, key_prefixes, valid_keycodes
-        )
+        code, macro_id, uc_hex = parse_code(raw_code, key_prefixes, valid_keycodes)
         # TODO: line numbers for invalid codes
-        err_msg = "Could not parse key '{}' on row {}".format(
-            raw_code, row_index
-        )
+        err_msg = "Could not parse key '{}' on row {}".format(raw_code, row_index)
         assert code is not None, err_msg
         # print(repr(raw_code), repr(code), macro_id, uc_hex)
         if macro_id:
@@ -432,17 +420,14 @@ def parse_keymap(config, key_indexes, layer_lines, valid_keycodes):
 
 def parse_keymaps(config, valid_keycodes):
     keymaps = collections.OrderedDict()
-    key_indexes = config.get(
-        'key_indexes', KEYBOARD_LAYOUTS[config['layout']]
-    )
+    key_indexes = config.get('key_indexes', KEYBOARD_LAYOUTS[config['layout']])
     # TODO: maybe validate key_indexes
 
     for layer_name, layer_lines, in config['layer_lines'].items():
-        keymaps[layer_name] = parse_keymap(
-            config, key_indexes, layer_lines, valid_keycodes
-        )
+        keymaps[layer_name] = parse_keymap(config, key_indexes, layer_lines, valid_keycodes)
     return keymaps
 
+
 #       keymap.c output
 
 USERCODE = """
@@ -453,7 +438,7 @@ void matrix_init_user(void) {
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
@@ -572,7 +557,6 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {{
 }};
 """
 
-
 UNICODE_MACRO_TEMPLATE = """
 case {macro_id}:
     unicode_action_function(0x{hi:02x}, 0x{lo:02x});
@@ -584,9 +568,7 @@ def unicode_macro_cases(config):
     for macro_id, uc_hex in config['unicode_macros'].items():
         hi = int(uc_hex, 16) >> 8
         lo = int(uc_hex, 16) & 0xFF
-        yield UNICODE_MACRO_TEMPLATE.format(
-            macro_id=macro_id, hi=hi, lo=lo
-        )
+        yield UNICODE_MACRO_TEMPLATE.format(macro_id=macro_id, hi=hi, lo=lo)
 
 
 def iter_keymap_lines(keymap, row_indents=None):
diff --git a/keyboards/ergoslab/keymaps/default/keymap.c b/keyboards/ergoslab/keymaps/default/keymap.c
index 59415618a8..093d586eba 100644
--- a/keyboards/ergoslab/keymaps/default/keymap.c
+++ b/keyboards/ergoslab/keymaps/default/keymap.c
@@ -51,7 +51,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 #ifdef RGBLIGHT_ENABLE
 layer_state_t layer_state_set_user(layer_state_t state) {
-  uint8_t layer = biton32(state);
+  uint8_t layer = get_highest_layer(state);
   switch (layer) {
       case BASE:
           rgblight_sethsv(HSV_ERGOSLAB_ORANGE);
diff --git a/keyboards/exclusive/e65/keymaps/masterzen/keymap.c b/keyboards/exclusive/e65/keymaps/masterzen/keymap.c
index 156832de4e..898a294f7e 100644
--- a/keyboards/exclusive/e65/keymaps/masterzen/keymap.c
+++ b/keyboards/exclusive/e65/keymaps/masterzen/keymap.c
@@ -102,7 +102,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
         edit = false;
     }
 
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case _ADJUST:
             temp_config.mode = rgblight_get_mode();
             rgblight_mode_noeeprom(1);
diff --git a/keyboards/exclusive/e7v1/keymaps/masterzen/keymap.c b/keyboards/exclusive/e7v1/keymaps/masterzen/keymap.c
index 6987e84021..2793cffe93 100644
--- a/keyboards/exclusive/e7v1/keymaps/masterzen/keymap.c
+++ b/keyboards/exclusive/e7v1/keymaps/masterzen/keymap.c
@@ -121,7 +121,7 @@ layer_state_t layer_state_set_user(layer_state_t state)
     edit = false;
   }
 
-  switch (biton32(state))
+  switch (get_highest_layer(state))
   {
   case _ADJUST:
     mode = rgblight_get_mode();
diff --git a/keyboards/gboards/gergo/keymaps/colemak/keymap.c b/keyboards/gboards/gergo/keymaps/colemak/keymap.c
index b2e79114f2..35b1e0b653 100644
--- a/keyboards/gboards/gergo/keymaps/colemak/keymap.c
+++ b/keyboards/gboards/gergo/keymaps/colemak/keymap.c
@@ -146,8 +146,8 @@ void matrix_init_user(void) {
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    //uint8_t layer = biton32(layer_state);
-    biton32(layer_state);
+    //uint8_t layer = get_highest_layer(layer_state);
+    get_highest_layer(layer_state);
 };
 
 
@@ -171,4 +171,3 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   }
   return true;
 };
-
diff --git a/keyboards/gh60/revc/keymaps/dbroqua/keymap.c b/keyboards/gh60/revc/keymaps/dbroqua/keymap.c
index 964f40f1c0..ffb87ef009 100644
--- a/keyboards/gh60/revc/keymaps/dbroqua/keymap.c
+++ b/keyboards/gh60/revc/keymaps/dbroqua/keymap.c
@@ -101,7 +101,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 void matrix_scan_user(void) {
-    uint32_t layer = layer_state;
+    layer_state_t layer = layer_state;
 
     if (layer & (1<<1)) {
         gh60_fn_led_on();
@@ -120,4 +120,4 @@ void matrix_scan_user(void) {
     } else {
         gh60_esc_led_off();
     }
-};
\ No newline at end of file
+};
diff --git a/keyboards/gh60/revc/keymaps/default/keymap.c b/keyboards/gh60/revc/keymaps/default/keymap.c
index a8fd4f3c22..4ebc71ff4b 100644
--- a/keyboards/gh60/revc/keymaps/default/keymap.c
+++ b/keyboards/gh60/revc/keymaps/default/keymap.c
@@ -31,7 +31,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 void matrix_scan_user(void) {
 
 //Layer LED indicators
-    uint32_t layer = layer_state;
+    layer_state_t layer = layer_state;
 
     if (layer & (1<<1)) {
         gh60_wasd_leds_on();
diff --git a/keyboards/gh60/revc/keymaps/robotmaxtron/keymap.c b/keyboards/gh60/revc/keymaps/robotmaxtron/keymap.c
index b84e7564fc..77bf54de63 100644
--- a/keyboards/gh60/revc/keymaps/robotmaxtron/keymap.c
+++ b/keyboards/gh60/revc/keymaps/robotmaxtron/keymap.c
@@ -97,7 +97,7 @@ void matrix_scan_user(void) {
 
 // Layer LED indicators
 // ESC led on when in function layer, WASD cluster leds enabled when on arrow cluster
-    uint32_t layer = layer_state;
+    layer_state_t layer = layer_state;
     if (layer & (1<<1)) {
         gh60_wasd_leds_on();
     } else {
diff --git a/keyboards/gh60/satan/keymaps/addcninblue/keymap.c b/keyboards/gh60/satan/keymaps/addcninblue/keymap.c
index 5012fee56b..2b1a417fb5 100644
--- a/keyboards/gh60/satan/keymaps/addcninblue/keymap.c
+++ b/keyboards/gh60/satan/keymaps/addcninblue/keymap.c
@@ -177,7 +177,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 }
 
 void matrix_scan_user(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   if (old_layer != layer) {
     switch (layer) {
diff --git a/keyboards/glenpickle/chimera_ergo/keymaps/default/keymap.c b/keyboards/glenpickle/chimera_ergo/keymaps/default/keymap.c
index 51ab0e92cd..dd7e32f7dc 100644
--- a/keyboards/glenpickle/chimera_ergo/keymaps/default/keymap.c
+++ b/keyboards/glenpickle/chimera_ergo/keymaps/default/keymap.c
@@ -131,7 +131,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 };
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
       case _QWERTY:
diff --git a/keyboards/glenpickle/chimera_ls/keymaps/default/keymap.c b/keyboards/glenpickle/chimera_ls/keymaps/default/keymap.c
index 0affeef389..1ae70e6245 100644
--- a/keyboards/glenpickle/chimera_ls/keymaps/default/keymap.c
+++ b/keyboards/glenpickle/chimera_ls/keymaps/default/keymap.c
@@ -158,7 +158,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
 
 void matrix_scan_user(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   switch (layer) {
     case _QWERTY:
diff --git a/keyboards/glenpickle/chimera_ortho/keymaps/default/keymap.c b/keyboards/glenpickle/chimera_ortho/keymaps/default/keymap.c
index 6a676493dd..bc783f540c 100644
--- a/keyboards/glenpickle/chimera_ortho/keymaps/default/keymap.c
+++ b/keyboards/glenpickle/chimera_ortho/keymaps/default/keymap.c
@@ -151,7 +151,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
       case _QWERTY:
diff --git a/keyboards/gon/nerdtkl/keymaps/gam3cat/keymap.c b/keyboards/gon/nerdtkl/keymaps/gam3cat/keymap.c
index c4294c812e..bda83bb5da 100644
--- a/keyboards/gon/nerdtkl/keymaps/gam3cat/keymap.c
+++ b/keyboards/gon/nerdtkl/keymaps/gam3cat/keymap.c
@@ -241,7 +241,7 @@ void matrix_scan_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case _BL:
             custom_backlight_level(0);
             break;
diff --git a/keyboards/handwired/frenchdev/keymaps/default/keymap.c b/keyboards/handwired/frenchdev/keymaps/default/keymap.c
index 2d917b412e..11463a0162 100644
--- a/keyboards/handwired/frenchdev/keymaps/default/keymap.c
+++ b/keyboards/handwired/frenchdev/keymaps/default/keymap.c
@@ -209,7 +209,7 @@ void press_underscore(void) {
 uint8_t old_layer=_BASE;
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     frenchdev_led_1_off();
     frenchdev_led_2_off();
diff --git a/keyboards/handwired/kbod/keymaps/default/keymap.c b/keyboards/handwired/kbod/keymaps/default/keymap.c
index 333f8a769f..0ffc3e9d97 100644
--- a/keyboards/handwired/kbod/keymaps/default/keymap.c
+++ b/keyboards/handwired/kbod/keymaps/default/keymap.c
@@ -89,7 +89,7 @@ void matrix_init_user(void) {
 }
 
 void matrix_scan_user(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
   if (layer) {
     PORTC |= _BV(PC7);
   } else {
diff --git a/keyboards/handwired/prime_exl/keymaps/via/keymap.c b/keyboards/handwired/prime_exl/keymaps/via/keymap.c
index 0e6802996d..b5b616d55b 100644
--- a/keyboards/handwired/prime_exl/keymaps/via/keymap.c
+++ b/keyboards/handwired/prime_exl/keymaps/via/keymap.c
@@ -87,7 +87,7 @@ void led_set_user(uint8_t usb_led) {
 //function for layer indicator LED
 layer_state_t layer_state_set_user(layer_state_t state)
 {
-    if (biton32(state) == 1) {
+    if (get_highest_layer(state) == 1) {
     writePinHigh(C6);
 	} else {
 		writePinLow(C6);
diff --git a/keyboards/handwired/promethium/keymaps/default/keymap.c b/keyboards/handwired/promethium/keymaps/default/keymap.c
index 1903b2f9ba..77f83361e6 100644
--- a/keyboards/handwired/promethium/keymaps/default/keymap.c
+++ b/keyboards/handwired/promethium/keymaps/default/keymap.c
@@ -529,7 +529,7 @@ void led_reset(void) {
 }
 
 void led_set_default_layer_indicator(void) {
-  uint8_t default_layer = biton32(default_layer_state);
+  uint8_t default_layer = get_highest_layer(default_layer_state);
   if (default_layer == _QWERTY) {
     rgbsps_set(LED_IND_QWERTY, THEME_COLOR_QWERTY);
     rgbsps_set(LED_IND_ALT, COLOR_BLANK);
@@ -553,7 +553,7 @@ void led_set_layer_indicator(void) {
   rgbsps_set(LED_IND_GREEK, COLOR_BLANK);
   rgbsps_set(LED_IND_EMOJI, COLOR_BLANK);
 
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
   if (oldlayer == layer) {
     return;
   }
@@ -1014,7 +1014,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
   lshift = keyboard_report->mods & MOD_BIT(KC_LSFT);
   rshift = keyboard_report->mods & MOD_BIT(KC_RSFT);
-  layer = biton32(layer_state);
+  layer = get_highest_layer(layer_state);
 
 #ifdef DOUBLESPACE_LAYER_ENABLE
   // double-space: send space immediately if any other key depressed before space is released
diff --git a/keyboards/handwired/promethium/keymaps/priyadi/keymap.c b/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
index 94b505aa2c..faa096ce08 100644
--- a/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
+++ b/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
@@ -532,7 +532,7 @@ void led_reset(void) {
 }
 
 void led_set_default_layer_indicator(void) {
-  uint8_t default_layer = biton32(default_layer_state);
+  uint8_t default_layer = get_highest_layer(default_layer_state);
   if (default_layer == _QWERTY) {
     rgbsps_set(LED_IND_QWERTY, THEME_COLOR_QWERTY);
     rgbsps_set(LED_IND_ALT, COLOR_BLANK);
@@ -556,7 +556,7 @@ void led_set_layer_indicator(void) {
   rgbsps_set(LED_IND_GREEK, COLOR_BLANK);
   rgbsps_set(LED_IND_EMOJI, COLOR_BLANK);
 
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
   if (oldlayer == layer) {
     return;
   }
@@ -989,7 +989,7 @@ void process_doublespace(bool pressed, bool *isactive, bool *otheractive, bool *
 }
 #endif
 
-uint32_t layer_state_set_kb(uint32_t state)
+layer_state_t layer_state_set_kb(layer_state_t state)
 {
   // turn on punc layer if both fun & num are on
   if ((state & ((1UL<<_NUM) | (1UL<<_FUN))) == ((1UL<<_NUM) | (1UL<<_FUN))) {
@@ -1017,7 +1017,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
   lshift = keyboard_report->mods & MOD_BIT(KC_LSFT);
   rshift = keyboard_report->mods & MOD_BIT(KC_RSFT);
-  layer = biton32(layer_state);
+  layer = get_highest_layer(layer_state);
 
 #ifdef DOUBLESPACE_LAYER_ENABLE
   // double-space: send space immediately if any other key depressed before space is released
diff --git a/keyboards/handwired/traveller/keymaps/default/keymap.c b/keyboards/handwired/traveller/keymaps/default/keymap.c
index 288acbe108..2cd57db35f 100644
--- a/keyboards/handwired/traveller/keymaps/default/keymap.c
+++ b/keyboards/handwired/traveller/keymaps/default/keymap.c
@@ -219,7 +219,7 @@ void LayerLEDSet(uint8_t layr) {
 uint8_t old_layer = _QW;
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     if (old_layer != layer) {
         LayerLEDSet(layer);
diff --git a/keyboards/handwired/tritium_numpad/keymaps/blu/keymap.c b/keyboards/handwired/tritium_numpad/keymaps/blu/keymap.c
index b618675295..50bbf232b5 100644
--- a/keyboards/handwired/tritium_numpad/keymaps/blu/keymap.c
+++ b/keyboards/handwired/tritium_numpad/keymaps/blu/keymap.c
@@ -9,7 +9,7 @@ void keyboard_pre_init_user(void)
 layer_state_t layer_state_set_user(layer_state_t state)
 {
 	// Switch layer LED accordingly
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case 0:
         writePinHigh(B0);
         break;
diff --git a/keyboards/helix/pico/keymaps/mtei/keymap.c b/keyboards/helix/pico/keymaps/mtei/keymap.c
index b703ca376d..f641829292 100644
--- a/keyboards/helix/pico/keymaps/mtei/keymap.c
+++ b/keyboards/helix/pico/keymaps/mtei/keymap.c
@@ -242,7 +242,7 @@ float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
 
 static int current_default_layer;
 
-uint32_t default_layer_state_set_kb(uint32_t state) {
+layer_state_t default_layer_state_set_kb(layer_state_t state) {
     // 1<<_QWERTY  - 1 == 1 - 1 == _QWERTY (=0)
     // 1<<_COLEMAK - 1 == 2 - 1 == _COLEMAK (=1)
     current_default_layer = state - 1;
diff --git a/keyboards/helix/rev2/keymaps/default/oled_display.c b/keyboards/helix/rev2/keymaps/default/oled_display.c
index ad5558869f..384356bd14 100644
--- a/keyboards/helix/rev2/keymaps/default/oled_display.c
+++ b/keyboards/helix/rev2/keymaps/default/oled_display.c
@@ -86,7 +86,7 @@ static void render_layer_status(void) {
         break;
     default:
         oled_write_P(PSTR("Undef-"), false);
-        snprintf(buf,sizeof(buf), "%ld", layer_state);
+        snprintf(buf,sizeof(buf), "%u", layer_state);
         oled_write(buf, false);
     }
     oled_write_P(PSTR("\n"), false);
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c b/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c
index 5de00cb14c..80d0392ffb 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c
@@ -5,9 +5,9 @@
 // keymaps definitions are moved to keymap_Xrows.c.
 
 #ifdef RGBLIGHT_ENABLE
-uint32_t layer_state_set_keymap(uint32_t state) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
     rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case L_EDVORAKJP_LOWER:
             rgblight_sethsv_noeeprom_red();
             break;
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/oled.c b/keyboards/helix/rev2/keymaps/edvorakjp/oled.c
index 207aebc423..14e3e5533b 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/oled.c
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/oled.c
@@ -19,7 +19,7 @@ void render_layer_state(void) {
     char layer_name[17];
     oled_write_P(PSTR("Layer: "), false);
 
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
         case L_EDVORAKJP_BASE:
             oled_write_ln_P(PSTR("Default"), false);
             break;
diff --git a/keyboards/helix/rev2/keymaps/five_rows/keymap.c b/keyboards/helix/rev2/keymaps/five_rows/keymap.c
index d992425de7..4d9dc16a9e 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/keymap.c
+++ b/keyboards/helix/rev2/keymaps/five_rows/keymap.c
@@ -379,8 +379,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 int current_default_layer;
 
-uint32_t default_layer_state_set_user(uint32_t state) {
-    current_default_layer = biton32(state);
+layer_state_t default_layer_state_set_user(layer_state_t state) {
+    current_default_layer = get_highest_layer(state);
     return state;
 }
 
diff --git a/keyboards/helix/rev3_5rows/keymaps/five_rows/keymap.c b/keyboards/helix/rev3_5rows/keymaps/five_rows/keymap.c
index d992425de7..4d9dc16a9e 100644
--- a/keyboards/helix/rev3_5rows/keymaps/five_rows/keymap.c
+++ b/keyboards/helix/rev3_5rows/keymaps/five_rows/keymap.c
@@ -379,8 +379,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 int current_default_layer;
 
-uint32_t default_layer_state_set_user(uint32_t state) {
-    current_default_layer = biton32(state);
+layer_state_t default_layer_state_set_user(layer_state_t state) {
+    current_default_layer = get_highest_layer(state);
     return state;
 }
 
diff --git a/keyboards/hineybush/h87a/keymaps/gam3cat/keymap.c b/keyboards/hineybush/h87a/keymaps/gam3cat/keymap.c
index d59438f6b3..d505d5171d 100644
--- a/keyboards/hineybush/h87a/keymaps/gam3cat/keymap.c
+++ b/keyboards/hineybush/h87a/keymaps/gam3cat/keymap.c
@@ -245,7 +245,7 @@ void matrix_scan_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case _BL:
             custom_backlight_level(0);
             rgblight_sethsv_noeeprom(180,100,255);
diff --git a/keyboards/hotdox/keymaps/default/keymap.c b/keyboards/hotdox/keymaps/default/keymap.c
index fe07e6f91d..eb4692a4c2 100644
--- a/keyboards/hotdox/keymaps/default/keymap.c
+++ b/keyboards/hotdox/keymaps/default/keymap.c
@@ -163,7 +163,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_right_led_1_off();
     ergodox_right_led_2_off();
diff --git a/keyboards/hotdox/keymaps/eozaki/keymap.c b/keyboards/hotdox/keymaps/eozaki/keymap.c
index 3516f20303..d4b8f491fd 100644
--- a/keyboards/hotdox/keymaps/eozaki/keymap.c
+++ b/keyboards/hotdox/keymaps/eozaki/keymap.c
@@ -170,7 +170,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/hotdox/keymaps/kloki/keymap.c b/keyboards/hotdox/keymaps/kloki/keymap.c
index f858effd54..2550b68978 100644
--- a/keyboards/hotdox/keymaps/kloki/keymap.c
+++ b/keyboards/hotdox/keymaps/kloki/keymap.c
@@ -189,7 +189,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/default/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/default/keymap.c
index cd65001803..6f9967b46e 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/default/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/default/keymap.c
@@ -167,7 +167,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/gordon/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/gordon/keymap.c
index c321d546fb..50e3238a7d 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/gordon/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/gordon/keymap.c
@@ -335,7 +335,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_on();
     ergodox_led_all_on();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/halfkeyboard/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/halfkeyboard/keymap.c
index 3870dd8ffd..c8498fe9e9 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/halfkeyboard/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/halfkeyboard/keymap.c
@@ -492,7 +492,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/input_club/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/input_club/keymap.c
index 545429fca0..e941cee154 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/input_club/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/input_club/keymap.c
@@ -223,7 +223,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/narze/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/narze/keymap.c
index dd721e9a78..184eb638c9 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/narze/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/narze/keymap.c
@@ -659,7 +659,7 @@ void matrix_setup(void) {
 }
 
 void matrix_scan_user(void) {
-  // uint8_t layer = biton32(layer_state);
+  // uint8_t layer = get_highest_layer(layer_state);
 
   //   ergodox_board_led_off();
   //   ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/nordic_ergo/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/nordic_ergo/keymap.c
index d08b96cc6e..70f49bb5c9 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/nordic_ergo/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/nordic_ergo/keymap.c
@@ -221,7 +221,7 @@ void matrix_init_user(void){
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/rask/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/rask/keymap.c
index e31c1c5d6b..b202823c77 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/rask/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/rask/keymap.c
@@ -179,7 +179,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/rjhilgefort/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/rjhilgefort/keymap.c
index 31d218ebfb..c322222baf 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/rjhilgefort/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/rjhilgefort/keymap.c
@@ -309,7 +309,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/ergodox_infinity/keymaps/trulyergonomic/keymap.c b/keyboards/input_club/ergodox_infinity/keymaps/trulyergonomic/keymap.c
index 02f409ad9e..bbc24ea27f 100644
--- a/keyboards/input_club/ergodox_infinity/keymaps/trulyergonomic/keymap.c
+++ b/keyboards/input_club/ergodox_infinity/keymaps/trulyergonomic/keymap.c
@@ -137,7 +137,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/input_club/infinity60/keymaps/jpetermans/keymap.c b/keyboards/input_club/infinity60/keymaps/jpetermans/keymap.c
index 3c2e0d4da8..a19be6664c 100644
--- a/keyboards/input_club/infinity60/keymaps/jpetermans/keymap.c
+++ b/keyboards/input_club/infinity60/keymaps/jpetermans/keymap.c
@@ -239,7 +239,7 @@ void matrix_scan_user(void) {
     //Turn on layer indicator or page depending on mode
     switch(led_mode_global) {
       case MODE_FLASH: //flash preset page leds then single indicator
-        page = biton32(layer_state) > max_pages ? 7 : biton32(layer_state);
+        page = get_highest_layer(layer_state) > max_pages ? 7 : get_highest_layer(layer_state);
         msg=(page << 8) | DISPLAY_PAGE;
         chMBPost(&led_mailbox, msg, TIME_IMMEDIATE);
         chThdSleepMilliseconds(500);
@@ -254,7 +254,7 @@ void matrix_scan_user(void) {
         break;
 
       case MODE_PAGE: //display pre-defined led page
-        page = biton32(layer_state) > max_pages ? 7 : biton32(layer_state);
+        page = get_highest_layer(layer_state) > max_pages ? 7 : get_highest_layer(layer_state);
         msg=(page << 8) | DISPLAY_PAGE;
         chMBPost(&led_mailbox, msg, TIME_IMMEDIATE);
         break;
diff --git a/keyboards/jc65/v32u4/keymaps/gam3cat/keymap.c b/keyboards/jc65/v32u4/keymaps/gam3cat/keymap.c
index 7572b9e073..453cd2360d 100644
--- a/keyboards/jc65/v32u4/keymaps/gam3cat/keymap.c
+++ b/keyboards/jc65/v32u4/keymaps/gam3cat/keymap.c
@@ -224,7 +224,7 @@ void matrix_scan_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
        case _BL:
            custom_backlight_level(0);
            rgblight_sethsv_noeeprom(180,100,255);
diff --git a/keyboards/jones/v03_1/keymaps/default_ansi/keymap.c b/keyboards/jones/v03_1/keymaps/default_ansi/keymap.c
index e86204a3e3..a592418c4d 100644
--- a/keyboards/jones/v03_1/keymaps/default_ansi/keymap.c
+++ b/keyboards/jones/v03_1/keymaps/default_ansi/keymap.c
@@ -253,7 +253,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
         }
     }
     if (index == 1) { /* Second encoder, Left side */
-        switch(biton32(layer_state)) {
+        switch(get_highest_layer(layer_state)) {
             case _LOWER:
                 if (clockwise) {
                     rgblight_decrease_hue();
diff --git a/keyboards/jones/v03_1/keymaps/default_jp/keymap.c b/keyboards/jones/v03_1/keymaps/default_jp/keymap.c
index 9a2663f6d7..56f51d56ce 100644
--- a/keyboards/jones/v03_1/keymaps/default_jp/keymap.c
+++ b/keyboards/jones/v03_1/keymaps/default_jp/keymap.c
@@ -255,7 +255,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
         }
     }
     if (index == 1) { /* Second encoder, Left side */
-        switch(biton32(layer_state)) {
+        switch(get_highest_layer(layer_state)) {
             case _LOWER:
                 if (clockwise) {
                     rgblight_decrease_hue();
diff --git a/keyboards/kakunpc/angel64/alpha/keymaps/default/keymap.c b/keyboards/kakunpc/angel64/alpha/keymaps/default/keymap.c
index 0f2a8dada1..92dfa7da6e 100644
--- a/keyboards/kakunpc/angel64/alpha/keymaps/default/keymap.c
+++ b/keyboards/kakunpc/angel64/alpha/keymaps/default/keymap.c
@@ -40,7 +40,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 #ifdef OLED_ENABLE
 bool oled_task_user(void) {
   oled_write_P(PSTR("Layer: "), false);
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case BASE:
       oled_write_P(PSTR("Default\n"), false);
       break;
diff --git a/keyboards/kakunpc/angel64/rev1/keymaps/kakunpc/keymap.c b/keyboards/kakunpc/angel64/rev1/keymaps/kakunpc/keymap.c
index 6c5184c1b3..601bf5f02f 100644
--- a/keyboards/kakunpc/angel64/rev1/keymaps/kakunpc/keymap.c
+++ b/keyboards/kakunpc/angel64/rev1/keymaps/kakunpc/keymap.c
@@ -175,7 +175,7 @@ void matrix_scan_user(void) {
 #ifdef OLED_ENABLE
 bool oled_task_user(void) {
   oled_write_P(PSTR("Layer: "), false);
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case BASE:
       oled_write_P(PSTR("Default\n"), false);
       break;
diff --git a/keyboards/kakunpc/suihankey/alpha/keymaps/default/keymap.c b/keyboards/kakunpc/suihankey/alpha/keymaps/default/keymap.c
index b682f0f15d..d937b68813 100644
--- a/keyboards/kakunpc/suihankey/alpha/keymaps/default/keymap.c
+++ b/keyboards/kakunpc/suihankey/alpha/keymaps/default/keymap.c
@@ -58,7 +58,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 #ifdef OLED_ENABLE
 bool oled_task_user(void) {
   oled_write_P(PSTR("Layer: "), false);
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case BASE:
       oled_write_P(PSTR("Default\n"), false);
       break;
diff --git a/keyboards/kakunpc/suihankey/rev1/keymaps/default/keymap.c b/keyboards/kakunpc/suihankey/rev1/keymaps/default/keymap.c
index b682f0f15d..d937b68813 100644
--- a/keyboards/kakunpc/suihankey/rev1/keymaps/default/keymap.c
+++ b/keyboards/kakunpc/suihankey/rev1/keymaps/default/keymap.c
@@ -58,7 +58,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 #ifdef OLED_ENABLE
 bool oled_task_user(void) {
   oled_write_P(PSTR("Layer: "), false);
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case BASE:
       oled_write_P(PSTR("Default\n"), false);
       break;
diff --git a/keyboards/kbdfans/kbd6x/keymaps/othi/keymap.c b/keyboards/kbdfans/kbd6x/keymaps/othi/keymap.c
index 6bbbdd87c1..ce341509a6 100644
--- a/keyboards/kbdfans/kbd6x/keymaps/othi/keymap.c
+++ b/keyboards/kbdfans/kbd6x/keymaps/othi/keymap.c
@@ -38,7 +38,7 @@ void eeconfig_init_user(void) {
 #define DE_UDIA_CAP UC(0x00DC)
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case NM_MODE:
         rgblight_setrgb (0x00,  0x66, 0x00);
         break;
@@ -187,4 +187,3 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
       _______,   _______,         _______,         _______,         _______,   _______,      _______
       ),
 };
-
diff --git a/keyboards/kbdfans/kbd75/keymaps/edulpn/keymap.c b/keyboards/kbdfans/kbd75/keymaps/edulpn/keymap.c
index 998f1a25d2..5a6d760355 100644
--- a/keyboards/kbdfans/kbd75/keymaps/edulpn/keymap.c
+++ b/keyboards/kbdfans/kbd75/keymaps/edulpn/keymap.c
@@ -45,7 +45,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case WINDOWS_LAYER:
         rgblight_setrgb_blue();
         break;
diff --git a/keyboards/kbdfans/niu_mini/keymaps/tobias/keymap.c b/keyboards/kbdfans/niu_mini/keymaps/tobias/keymap.c
index 935dd5c506..8c03ae2df2 100644
--- a/keyboards/kbdfans/niu_mini/keymaps/tobias/keymap.c
+++ b/keyboards/kbdfans/niu_mini/keymaps/tobias/keymap.c
@@ -8,7 +8,7 @@
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details. 
+ * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
@@ -103,8 +103,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   KC_EQL, S(KC_EQL),   RALT(KC_2), RALT(KC_3), RALT(KC_4), RALT(KC_E), KC_RBRC, RALT(KC_7), RALT(KC_8), RALT(KC_9),    RALT(KC_0), RALT(KC_MINS),
   KC_LSFT, KC_NUBS, RALT(KC_NUBS), S(KC_NUBS), DGRMCRO, XXXXXXX, XXXXXXX,   RALT(KC_M),   KC_RBRC,  S(KC_RBRC), RALT(KC_RBRC),       _______,
   _______, _______,       KC_RALT,    _______,TO(_ADJUST), _______, _______,      _______,   _______,     _______,       _______, TO(_QWERTY)
-), 
- 
+),
+
 
 /* Lower
  * ,-----------------------------------------------------------------------------------.
@@ -257,10 +257,10 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                 }
                 else {
                     workmode = false;
-                    return false;       
-                }           
+                    return false;
+                }
         }
-        
+
     }
     return true;
 }
@@ -293,7 +293,7 @@ void rgbflag(uint8_t r, uint8_t g, uint8_t b) {
 
 layer_state_t layer_state_set_user(layer_state_t state) {
 //  if(rgblight_get_mode() == 1) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _QWERTY:
         if(!workmode){
             rgblight_mode(9);
@@ -312,7 +312,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
             tap_code(KC_NLCK);
         }
         rgbflag(0xFF,  0x00, 0x00);
-        
+
         break;
     case _ADJUST:
         rgblight_mode(1);
@@ -350,7 +350,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
         rgblight_mode(1);
         if(bnumlock) {
             tap_code(KC_NLCK);
-        }        
+        }
         rgbflag(0xFF,  0xFF, 0xFF);
         break;
     }
@@ -363,8 +363,8 @@ layer_state_t layer_state_set_user(layer_state_t state) {
     //Layer LED indicators
 
     uint32_t layer = layer_state;
-    
-    
+
+
     if (layer & (1<<2)) {
         if(!bnumlock) {
             numlock_changed = true;
@@ -373,10 +373,10 @@ layer_state_t layer_state_set_user(layer_state_t state) {
             bnumlock = true;
         }
     }
-} 
+}
  */
- 
- 
+
+
 void led_set_user(uint8_t usb_led) {
 
     if (usb_led & (1 << USB_LED_NUM_LOCK)) {
@@ -410,4 +410,4 @@ void led_set_user(uint8_t usb_led) {
 
     }
 
-}
\ No newline at end of file
+}
diff --git a/keyboards/kbdfans/niu_mini/keymaps/xtonhasvim/keymap.c b/keyboards/kbdfans/niu_mini/keymaps/xtonhasvim/keymap.c
index bfda812738..d3c6102b16 100644
--- a/keyboards/kbdfans/niu_mini/keymaps/xtonhasvim/keymap.c
+++ b/keyboards/kbdfans/niu_mini/keymaps/xtonhasvim/keymap.c
@@ -187,7 +187,7 @@ void rgbflag(uint8_t r, uint8_t g, uint8_t b, uint8_t rr, uint8_t gg, uint8_t bb
 
 void set_state_leds(void) {
   if (rgblight_get_mode() == 1) {
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
     case _RAISE:
       rgbflag(C_BLU, C_GRN);
       break;
diff --git a/keyboards/keebio/bdn9/keymaps/vosechu-ksp/keymap.c b/keyboards/keebio/bdn9/keymaps/vosechu-ksp/keymap.c
index a449c3ec3d..3b92657d4d 100644
--- a/keyboards/keebio/bdn9/keymaps/vosechu-ksp/keymap.c
+++ b/keyboards/keebio/bdn9/keymaps/vosechu-ksp/keymap.c
@@ -64,7 +64,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
     flight_mode = false;
     rcs_mode = false;
 
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _PANIC:
         panic_mode = true; // For use in encoder evaluation
         rgblight_sethsv_noeeprom(HSV_RED);
diff --git a/keyboards/keebio/bfo9000/keymaps/abstractkb/keymap.c b/keyboards/keebio/bfo9000/keymaps/abstractkb/keymap.c
index 29531b9973..ad56226ac6 100644
--- a/keyboards/keebio/bfo9000/keymaps/abstractkb/keymap.c
+++ b/keyboards/keebio/bfo9000/keymaps/abstractkb/keymap.c
@@ -42,7 +42,7 @@ void matrix_post_init_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case _LIST:
       rgblight_sethsv_noeeprom(0,255,255);
       rgblight_mode_noeeprom(RGBLIGHT_MODE_RAINBOW_SWIRL);
@@ -87,6 +87,3 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       return true;
   }
 }
-
-
-
diff --git a/keyboards/keebio/iris/keymaps/edvorakjp/keymap.c b/keyboards/keebio/iris/keymaps/edvorakjp/keymap.c
index 0c0fc5a746..013d6c00a5 100644
--- a/keyboards/keebio/iris/keymaps/edvorakjp/keymap.c
+++ b/keyboards/keebio/iris/keymaps/edvorakjp/keymap.c
@@ -59,9 +59,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 void matrix_init_keymap() {}
 
 #ifdef RGBLIGHT_EFFECT_STATIC_GRADIENT
-uint32_t layer_state_set_keymap(uint32_t state) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
     rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case L_EDVORAKJP_LOWER:
             rgblight_sethsv_noeeprom_red();
             break;
diff --git a/keyboards/keebio/iris/keymaps/jerryhcooke/keymap.c b/keyboards/keebio/iris/keymaps/jerryhcooke/keymap.c
index e0c09638b2..bc04f9fbfd 100644
--- a/keyboards/keebio/iris/keymaps/jerryhcooke/keymap.c
+++ b/keyboards/keebio/iris/keymaps/jerryhcooke/keymap.c
@@ -11,7 +11,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {[0] = LAYOUT(KC_GE
 #ifdef ENCODER_ENABLE
 bool encoder_update_user(uint8_t index, bool clockwise) {
     if (index == 0) {
-        switch (biton32(layer_state)) {
+        switch (get_highest_layer(layer_state)) {
             case _LOWER:
                 clockwise ? tap_code(KC_MS_WH_UP) : tap_code(KC_MS_WH_DOWN);
                 break;
@@ -23,7 +23,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
                 break;
         }
     } else if (index == 1) {
-        switch (biton32(layer_state)) {
+        switch (get_highest_layer(layer_state)) {
             case _LOWER:
                 clockwise ? tap_code(KC_UP) : tap_code(KC_DOWN);
                 break;
diff --git a/keyboards/keebio/iris/keymaps/sq5rix/keymap.c b/keyboards/keebio/iris/keymaps/sq5rix/keymap.c
index 19a939a55b..d3e0d680a1 100644
--- a/keyboards/keebio/iris/keymaps/sq5rix/keymap.c
+++ b/keyboards/keebio/iris/keymaps/sq5rix/keymap.c
@@ -134,7 +134,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
     }
     // tmux screen
     else if (index == 1) {
-        switch(biton32(layer_state)){
+        switch(get_highest_layer(layer_state)){
              case 0:
                 if (clockwise) {
                     send_string(SS_LCTL("B")"p");
@@ -182,4 +182,3 @@ layer_state_t layer_state_set_user(layer_state_t state) {
     rgblight_set_layer_state(2, layer_state_cmp(state, 4));
     return state;
 }
-
diff --git a/keyboards/keebio/levinson/keymaps/issmirnov/keymap.c b/keyboards/keebio/levinson/keymaps/issmirnov/keymap.c
index d9edfebaa0..6de2279be4 100644
--- a/keyboards/keebio/levinson/keymaps/issmirnov/keymap.c
+++ b/keyboards/keebio/levinson/keymaps/issmirnov/keymap.c
@@ -91,7 +91,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
   #ifdef RGBLIGHT_ENABLE
     layer_state_set_rgb(state);
   #endif
-  uint8_t layer = biton32(state);
+  uint8_t layer = get_highest_layer(state);
   combo_enable(); // by default, enable combos.
   switch (layer) {
     case 0:
diff --git a/keyboards/keebio/levinson/keymaps/issmirnov/rgb.c b/keyboards/keebio/levinson/keymaps/issmirnov/rgb.c
index de3a5342c0..3695731353 100644
--- a/keyboards/keebio/levinson/keymaps/issmirnov/rgb.c
+++ b/keyboards/keebio/levinson/keymaps/issmirnov/rgb.c
@@ -45,7 +45,7 @@ void matrix_scan_rgb(void) {
 }
 
 void set_rgb_indicators(uint8_t this_mod, uint8_t this_osm) {
-  if (biton32(layer_state) == _QWERTY) {
+  if (get_highest_layer(layer_state) == _QWERTY) {
     if ((this_mod | this_osm) & MOD_MASK_SHIFT) {
       rgblight_setrgb_gold_at(SHFT_LED1);
     } else {
diff --git a/keyboards/keebio/levinson/keymaps/issmirnov/rgb.h b/keyboards/keebio/levinson/keymaps/issmirnov/rgb.h
index 254d3cbac0..8b14d8571d 100644
--- a/keyboards/keebio/levinson/keymaps/issmirnov/rgb.h
+++ b/keyboards/keebio/levinson/keymaps/issmirnov/rgb.h
@@ -6,7 +6,7 @@
 void keyboard_post_init_rgb(void);
 
 // If rgb enabled, set underglow for layer
-uint32_t layer_state_set_rgb(uint32_t state);
+layer_state_t layer_state_set_rgb(layer_state_t state);
 
 // Enhance matrix scan code. Note: keep this light, since it runs every 100ms
 void matrix_scan_rgb(void);
diff --git a/keyboards/keebio/levinson/keymaps/xtonhasvim/keymap.c b/keyboards/keebio/levinson/keymaps/xtonhasvim/keymap.c
index 16aa965d7d..014e6c9c23 100644
--- a/keyboards/keebio/levinson/keymaps/xtonhasvim/keymap.c
+++ b/keyboards/keebio/levinson/keymaps/xtonhasvim/keymap.c
@@ -182,7 +182,7 @@ void rgbflag(uint8_t r, uint8_t g, uint8_t b, uint8_t rr, uint8_t gg, uint8_t bb
 
 void set_state_leds(void) {
   if (rgblight_get_mode() == 1) {
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
     case _RAISE:
       rgbflag(C_BLU, C_GRN);
       break;
diff --git a/keyboards/keebio/nyquist/keymaps/pitty/keymap.c b/keyboards/keebio/nyquist/keymaps/pitty/keymap.c
index 31912bb63e..2016cd1c46 100644
--- a/keyboards/keebio/nyquist/keymaps/pitty/keymap.c
+++ b/keyboards/keebio/nyquist/keymaps/pitty/keymap.c
@@ -143,7 +143,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 #ifdef RGBLIGHT_ENABLE
   uint8_t default_layer = eeconfig_read_default_layer();
   if (rgb_layer_change) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _LOWER:
       rgblight_set_purple;
       rgblight_mode(5);
diff --git a/keyboards/keebio/quefrency/keymaps/georgepetri/keymap.c b/keyboards/keebio/quefrency/keymaps/georgepetri/keymap.c
index a367e877fe..7d6f9da30e 100644
--- a/keyboards/keebio/quefrency/keymaps/georgepetri/keymap.c
+++ b/keyboards/keebio/quefrency/keymaps/georgepetri/keymap.c
@@ -64,7 +64,7 @@ void keyboard_post_init_user(void) {
 }
 
 void update_led(void) {
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
       case _BASE:
       rgblight_sethsv_noeeprom(HSV_BLUE);
       break;
diff --git a/keyboards/keyhive/honeycomb/keymaps/default/keymap.c b/keyboards/keyhive/honeycomb/keymaps/default/keymap.c
index d0a5961873..429624822e 100755
--- a/keyboards/keyhive/honeycomb/keymaps/default/keymap.c
+++ b/keyboards/keyhive/honeycomb/keymaps/default/keymap.c
@@ -37,7 +37,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 report_mouse_t currentReport = {};
 
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
-	//uint8_t layer = biton32(layer_state);  // get the current layer
+	//uint8_t layer = get_highest_layer(layer_state);  // get the current layer
 
 	// Basic example functions
 	switch (keycode) {
diff --git a/keyboards/kinesis/keymaps/milestogo/keymap.c b/keyboards/kinesis/keymaps/milestogo/keymap.c
index 8c01bcb83d..72687195ef 100644
--- a/keyboards/kinesis/keymaps/milestogo/keymap.c
+++ b/keyboards/kinesis/keymaps/milestogo/keymap.c
@@ -330,7 +330,7 @@ void matrix_init_user(void) {
 void matrix_scan_user(void) {
 
 #ifdef ALVICSTEP_CONFIG_H
- int8_t layer = biton32(layer_state);
+ int8_t layer = get_highest_layer(layer_state);
 
         switch (layer) {
         case 1:
diff --git a/keyboards/kprepublic/cospad/keymaps/detrus/keymap.c b/keyboards/kprepublic/cospad/keymaps/detrus/keymap.c
index af56305e5c..84324c6e0d 100644
--- a/keyboards/kprepublic/cospad/keymaps/detrus/keymap.c
+++ b/keyboards/kprepublic/cospad/keymaps/detrus/keymap.c
@@ -271,7 +271,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 // Makes sure to update the good tri-layer if a layer changes
 layer_state_t layer_state_set_user(layer_state_t state) {
-	switch (biton32(default_layer_state)) {
+	switch (get_highest_layer(default_layer_state)) {
 		case _QWERTY_LAYER:
 			state = update_tri_layer_state(state, _RAISE_LAYER, _QWERTY_LOWER_LAYER, _ALTER_LAYER);
 			break;
@@ -289,8 +289,8 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 }
 
 // Makes the tri-layer
-uint32_t default_layer_state_set_kb(uint32_t state) {
-	switch (biton32(state)) {
+layer_state_t default_layer_state_set_kb(layer_state_t state) {
+	switch (get_highest_layer(state)) {
 		case _QWERTY_LAYER:
 			state = update_tri_layer_state(state, _RAISE_LAYER, _QWERTZ_LOWER_LAYER, _ALTER_LAYER);
 			state = update_tri_layer_state(state, _RAISE_LAYER, _COLEMA_LOWER_LAYER, _ALTER_LAYER);
diff --git a/keyboards/kprepublic/jj50/keymaps/abstractkb/keymap.c b/keyboards/kprepublic/jj50/keymaps/abstractkb/keymap.c
index e257649369..c096aaea10 100644
--- a/keyboards/kprepublic/jj50/keymaps/abstractkb/keymap.c
+++ b/keyboards/kprepublic/jj50/keymaps/abstractkb/keymap.c
@@ -42,7 +42,7 @@ void keyboard_post_init_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case _RAISE:
       rgblight_sethsv_noeeprom(170,255,255);
       rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
diff --git a/keyboards/kprepublic/jj50/keymaps/abstractkb_gergomatch/keymap.c b/keyboards/kprepublic/jj50/keymaps/abstractkb_gergomatch/keymap.c
index baedbb4dd2..af4c3c84bb 100644
--- a/keyboards/kprepublic/jj50/keymaps/abstractkb_gergomatch/keymap.c
+++ b/keyboards/kprepublic/jj50/keymaps/abstractkb_gergomatch/keymap.c
@@ -42,7 +42,7 @@ void keyboard_post_init_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case _FUNC:
       rgblight_sethsv_noeeprom(170,255,255);
       rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
diff --git a/keyboards/ktec/ergodone/keymaps/eozaki/keymap.c b/keyboards/ktec/ergodone/keymaps/eozaki/keymap.c
index 09854ee89c..3910756f81 100644
--- a/keyboards/ktec/ergodone/keymaps/eozaki/keymap.c
+++ b/keyboards/ktec/ergodone/keymaps/eozaki/keymap.c
@@ -179,7 +179,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ktec/ergodone/keymaps/erovia/keymap.c b/keyboards/ktec/ergodone/keymaps/erovia/keymap.c
index 279c8a57c1..502c0dafe6 100644
--- a/keyboards/ktec/ergodone/keymaps/erovia/keymap.c
+++ b/keyboards/ktec/ergodone/keymaps/erovia/keymap.c
@@ -204,7 +204,7 @@ void matrix_init_user(void) {
 
 layer_state_t layer_state_set_user(layer_state_t state) {
     ergodox_led_all_off();
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
       case FN:
           // Red led on Pro Micro for Fn layer
           ergodox_board_led_on();
diff --git a/keyboards/ktec/ergodone/keymaps/kloki/keymap.c b/keyboards/ktec/ergodone/keymaps/kloki/keymap.c
index 87e96d20fd..1347f8f501 100644
--- a/keyboards/ktec/ergodone/keymaps/kloki/keymap.c
+++ b/keyboards/ktec/ergodone/keymaps/kloki/keymap.c
@@ -198,7 +198,7 @@ void matrix_init_user(void) {
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/ktec/ergodone/keymaps/vega/keymap.c b/keyboards/ktec/ergodone/keymaps/vega/keymap.c
index ee6c56bf95..21db785345 100644
--- a/keyboards/ktec/ergodone/keymaps/vega/keymap.c
+++ b/keyboards/ktec/ergodone/keymaps/vega/keymap.c
@@ -534,7 +534,7 @@ void matrix_init_user(void) {
 
 // Runs constantly in the background, in a loop.
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     ergodox_board_led_off();
     ergodox_right_led_1_off();
diff --git a/keyboards/leeku/finger65/keymaps/madhatter/keymap.c b/keyboards/leeku/finger65/keymaps/madhatter/keymap.c
index a69fe69153..f73b0371a1 100644
--- a/keyboards/leeku/finger65/keymaps/madhatter/keymap.c
+++ b/keyboards/leeku/finger65/keymaps/madhatter/keymap.c
@@ -40,7 +40,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // layer_state_t layer_state_set_user(layer_state_t state) {
-//   switch(biton32(state)) {
+//   switch(get_highest_layer(state)) {
 //   case _FNMS:
 //     led_off();
 //     rgb_on();
diff --git a/keyboards/lets_split/keymaps/bbaserdem/keymap.c b/keyboards/lets_split/keymaps/bbaserdem/keymap.c
index f9eab059ef..296b3ccd23 100755
--- a/keyboards/lets_split/keymaps/bbaserdem/keymap.c
+++ b/keyboards/lets_split/keymaps/bbaserdem/keymap.c
@@ -13,7 +13,7 @@
 void matrix_init_keymap (void) {
 }
 
-uint32_t layer_state_set_keymap(uint32_t state) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
     return state;
 }
 
diff --git a/keyboards/lets_split/keymaps/cpeters1982/keymap.c b/keyboards/lets_split/keymaps/cpeters1982/keymap.c
index c4c26d56bc..27cd9db8b4 100644
--- a/keyboards/lets_split/keymaps/cpeters1982/keymap.c
+++ b/keyboards/lets_split/keymaps/cpeters1982/keymap.c
@@ -183,7 +183,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 #ifdef RGBLIGHT_ENABLE
   uint8_t default_layer = eeconfig_read_default_layer();
   if (rgb_layer_change) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _RAISE:
       rgblight_set_orange;
       rgblight_mode(5);
diff --git a/keyboards/lets_split/keymaps/geripgeri/keymap.c b/keyboards/lets_split/keymaps/geripgeri/keymap.c
index 62e3570468..eb22a1509e 100644
--- a/keyboards/lets_split/keymaps/geripgeri/keymap.c
+++ b/keyboards/lets_split/keymaps/geripgeri/keymap.c
@@ -255,7 +255,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
   state = update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
   writePin(B0, !(state & (1UL << (_NUMPAD))));
 
-  switch(biton32(state)) {
+  switch(get_highest_layer(state)) {
     case _RAISE:
       rgblight_setrgb_at(255, 255, 255, RGBLED_NUM / 2);
       rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
diff --git a/keyboards/lets_split/keymaps/pitty/keymap.c b/keyboards/lets_split/keymaps/pitty/keymap.c
index d723e0c026..8bc32a1eb7 100644
--- a/keyboards/lets_split/keymaps/pitty/keymap.c
+++ b/keyboards/lets_split/keymaps/pitty/keymap.c
@@ -128,7 +128,7 @@ void persistent_default_layer_set(uint16_t default_layer) {
 
 
 void matrix_scan_user(void) {
-   uint8_t layer = biton32(layer_state);
+   uint8_t layer = get_highest_layer(layer_state);
    switch (layer) {
      case _NAV:
          if (RGB_INIT) {} else {
diff --git a/keyboards/lily58/lib/layer_state_reader.c b/keyboards/lily58/lib/layer_state_reader.c
index 0e9dd7039b..868d8e5cb4 100644
--- a/keyboards/lily58/lib/layer_state_reader.c
+++ b/keyboards/lily58/lib/layer_state_reader.c
@@ -28,7 +28,7 @@ const char *read_layer_state(void) {
     snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Adjust");
     break;
   default:
-    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Undef-%ld", layer_state);
+    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Undef-%u", layer_state);
   }
 
   return layer_state_str;
diff --git a/keyboards/m10a/keymaps/gam3cat/keymap.c b/keyboards/m10a/keymaps/gam3cat/keymap.c
index f962246ef3..86231f8406 100644
--- a/keyboards/m10a/keymaps/gam3cat/keymap.c
+++ b/keyboards/m10a/keymaps/gam3cat/keymap.c
@@ -115,7 +115,7 @@ void matrix_scan_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
         case _L0:
             custom_backlight_level(0);
             break;
diff --git a/keyboards/maple_computing/lets_split_eh/keymaps/bbaserdem/keymap.c b/keyboards/maple_computing/lets_split_eh/keymaps/bbaserdem/keymap.c
index 92e72bbf1c..73329c3114 100755
--- a/keyboards/maple_computing/lets_split_eh/keymaps/bbaserdem/keymap.c
+++ b/keyboards/maple_computing/lets_split_eh/keymaps/bbaserdem/keymap.c
@@ -5,7 +5,7 @@
 void matrix_init_keymap (void) {
 }
 
-uint32_t layer_state_set_keymap(uint32_t state) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
     return state;
 }
 
diff --git a/keyboards/maple_computing/lets_split_eh/keymaps/romus/keymap.c b/keyboards/maple_computing/lets_split_eh/keymaps/romus/keymap.c
index ba5b75a5cf..398a324a0f 100644
--- a/keyboards/maple_computing/lets_split_eh/keymaps/romus/keymap.c
+++ b/keyboards/maple_computing/lets_split_eh/keymaps/romus/keymap.c
@@ -5,8 +5,8 @@
 void matrix_init_keymap (void) {
 }
 
-uint32_t layer_state_set_keymap(uint32_t state) {
-	
+layer_state_t layer_state_set_keymap(layer_state_t state) {
+
     return state;
 }
 
diff --git a/keyboards/mechkeys/mechmini/v2/keymaps/wsturgiss/keymap.c b/keyboards/mechkeys/mechmini/v2/keymaps/wsturgiss/keymap.c
index 218936a19b..689a9ce36e 100644
--- a/keyboards/mechkeys/mechmini/v2/keymaps/wsturgiss/keymap.c
+++ b/keyboards/mechkeys/mechmini/v2/keymaps/wsturgiss/keymap.c
@@ -87,7 +87,7 @@ void matrix_scan_user(void) {
 
 //change colors and rgb modes on layer change
 layer_state_t layer_state_set_user(layer_state_t state) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case raise:
         rgblight_mode_noeeprom(1);
         rgblight_setrgb(0xc7, 0x00, 0xf4);
@@ -103,4 +103,3 @@ layer_state_t layer_state_set_user(layer_state_t state) {
     }
   return state;
 };
-
diff --git a/keyboards/mechllama/g35/keymaps/default/keymap.c b/keyboards/mechllama/g35/keymaps/default/keymap.c
index 4568f54f54..09d7afe171 100644
--- a/keyboards/mechllama/g35/keymaps/default/keymap.c
+++ b/keyboards/mechllama/g35/keymaps/default/keymap.c
@@ -67,7 +67,7 @@ const char* get_layer_name(uint8_t layer) {
 }
 
 bool oled_task_user(void) {
-    oled_write_ln_P(get_layer_name(biton32(layer_state)), false);
+    oled_write_ln_P(get_layer_name(get_highest_layer(layer_state)), false);
     return false;
 }
 #endif
diff --git a/keyboards/mechlovin/hannah910/hannah910.c b/keyboards/mechlovin/hannah910/hannah910.c
index 3237636be2..70c1a7b8e3 100644
--- a/keyboards/mechlovin/hannah910/hannah910.c
+++ b/keyboards/mechlovin/hannah910/hannah910.c
@@ -34,20 +34,20 @@ void led_set_kb(uint8_t usb_led) {
 layer_state_t layer_state_set_user(layer_state_t state)
 {
   // if on layer 1, turn on D2 LED, otherwise off.
-    if (biton32(state) == 1) {
+    if (get_highest_layer(state) == 1) {
         writePinHigh(D2);
     } else {
         writePinLow(D2);
     }
   // if on layer 2, turn on D1 LED, otherwise off.
-    if (biton32(state) == 2) {
+    if (get_highest_layer(state) == 2) {
         writePinHigh(D1);
     } else {
         writePinLow(D1);
     }
 
   // if on layer 3, turn on D0 LED, otherwise off.
-    if (biton32(state) == 3) {
+    if (get_highest_layer(state) == 3) {
         writePinHigh(D0);
     } else {
         writePinLow(D0);
diff --git a/keyboards/mechlovin/hex4b/keymaps/nazzer/keymap.c b/keyboards/mechlovin/hex4b/keymaps/nazzer/keymap.c
index 437233be52..e0634d85dc 100644
--- a/keyboards/mechlovin/hex4b/keymaps/nazzer/keymap.c
+++ b/keyboards/mechlovin/hex4b/keymaps/nazzer/keymap.c
@@ -53,9 +53,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 bool led_update_user(led_t led_state) {
-	
+
 	// Toggle CAPS_LOCK LED normally
-	
+
 #    if LED_PIN_ON_STATE == 0
         // invert the whole thing to avoid having to conditionally !led_state.x later
         led_state.raw = ~led_state.raw;
@@ -69,30 +69,30 @@ bool led_update_user(led_t led_state) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-	
-	uint8_t layer = biton32(state);
-	
+
+	uint8_t layer = get_highest_layer(state);
+
 #if defined(LED_NUM_LOCK_PIN) && defined(LED_SCROLL_LOCK_PIN)
     switch (layer) {
         case 0:
-			writePin(LED_SCROLL_LOCK_PIN, !LED_PIN_ON_STATE); 
-			writePin(LED_NUM_LOCK_PIN, !LED_PIN_ON_STATE); 
+			writePin(LED_SCROLL_LOCK_PIN, !LED_PIN_ON_STATE);
+			writePin(LED_NUM_LOCK_PIN, !LED_PIN_ON_STATE);
             break;
         case 1:
-			writePin(LED_SCROLL_LOCK_PIN, LED_PIN_ON_STATE); 
-			writePin(LED_NUM_LOCK_PIN, !LED_PIN_ON_STATE); 
+			writePin(LED_SCROLL_LOCK_PIN, LED_PIN_ON_STATE);
+			writePin(LED_NUM_LOCK_PIN, !LED_PIN_ON_STATE);
             break;
         case 2:
-			writePin(LED_SCROLL_LOCK_PIN, !LED_PIN_ON_STATE); 
-			writePin(LED_NUM_LOCK_PIN, LED_PIN_ON_STATE); 
+			writePin(LED_SCROLL_LOCK_PIN, !LED_PIN_ON_STATE);
+			writePin(LED_NUM_LOCK_PIN, LED_PIN_ON_STATE);
             break;
         case 3:
-			writePin(LED_SCROLL_LOCK_PIN, LED_PIN_ON_STATE); 
-			writePin(LED_NUM_LOCK_PIN, LED_PIN_ON_STATE); 
+			writePin(LED_SCROLL_LOCK_PIN, LED_PIN_ON_STATE);
+			writePin(LED_NUM_LOCK_PIN, LED_PIN_ON_STATE);
             break;
     }
 #endif
 
-	return state;												
+	return state;
 
 }
diff --git a/keyboards/minimacro5/keymaps/devdev/keymap.c b/keyboards/minimacro5/keymaps/devdev/keymap.c
index d7f998fa3a..3c203fcc37 100644
--- a/keyboards/minimacro5/keymaps/devdev/keymap.c
+++ b/keyboards/minimacro5/keymaps/devdev/keymap.c
@@ -37,7 +37,7 @@ enum tap_dances{
 
 bool encoder_update_user(uint8_t index, bool clockwise) {
   if (index == 0) { /* First encoder*/
-    switch(biton32(layer_state)){
+    switch(get_highest_layer(layer_state)){
 		case _MAIN:
 			if (clockwise) {
 			  tap_code(KC_VOLU);
diff --git a/keyboards/mitosis/keymaps/carvac_dv/keymap.c b/keyboards/mitosis/keymaps/carvac_dv/keymap.c
index c67f2e387c..842556324f 100644
--- a/keyboards/mitosis/keymaps/carvac_dv/keymap.c
+++ b/keyboards/mitosis/keymaps/carvac_dv/keymap.c
@@ -105,7 +105,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
     	case _STD:
@@ -121,4 +121,3 @@ void matrix_scan_user(void) {
             break;
     }
 };
-
diff --git a/keyboards/mitosis/keymaps/datagrok/keymap.c b/keyboards/mitosis/keymaps/datagrok/keymap.c
index 220c140af0..2611e1194c 100644
--- a/keyboards/mitosis/keymaps/datagrok/keymap.c
+++ b/keyboards/mitosis/keymaps/datagrok/keymap.c
@@ -102,7 +102,7 @@ const size_t defaultlayers_n = sizeof(defaultlayers) / sizeof(defaultlayers[0]);
 // New keycode KC_LAYO rotates between available default layers (for e.g.,
 // selecting a base layout). Shift+KC_LAYO makes the current one persistent.
 bool process_record_layout(uint16_t keycode, keyrecord_t *record) {
-  uint32_t default_layer;
+  uint8_t default_layer;
   uint8_t i;
   #if defined(AUDIO_ENABLE)
   float saved_song[][2] = SONG(COIN_SOUND);
@@ -121,7 +121,7 @@ bool process_record_layout(uint16_t keycode, keyrecord_t *record) {
   } else {
     // rotate default layer.
     // find the current default layer
-    default_layer = biton32(default_layer_state);
+    default_layer = get_highest_layer(default_layer_state);
     // find next valid default layer
     for (i = 1; i < defaultlayers_n; i++) {
       if (defaultlayers[(default_layer + i) % defaultlayers_n]) {
diff --git a/keyboards/mitosis/keymaps/default/keymap.c b/keyboards/mitosis/keymaps/default/keymap.c
index 6132ad6f78..27b2eb2525 100644
--- a/keyboards/mitosis/keymaps/default/keymap.c
+++ b/keyboards/mitosis/keymaps/default/keymap.c
@@ -77,7 +77,7 @@ static bool singular_key = false;
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
 	uint8_t layer;
-  layer = biton32(layer_state);  // get the current layer
+  layer = get_highest_layer(layer_state);  // get the current layer
 
   //custom layer handling for tri_layer,
   switch (keycode) {
@@ -174,7 +174,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 };
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
     	case _MALT:
@@ -193,4 +193,3 @@ void matrix_scan_user(void) {
             break;
     }
 };
-
diff --git a/keyboards/mitosis/keymaps/mjt/keymap.c b/keyboards/mitosis/keymaps/mjt/keymap.c
index f00bf59556..0946e40b8e 100644
--- a/keyboards/mitosis/keymaps/mjt/keymap.c
+++ b/keyboards/mitosis/keymaps/mjt/keymap.c
@@ -181,7 +181,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     return false;
   }
   uint8_t layer;
-  layer = biton32(layer_state);  // get the current layer
+  layer = get_highest_layer(layer_state);  // get the current layer
 
   //custom layer handling for tri_layer,
   switch (keycode) {
@@ -310,7 +310,7 @@ void music_scale_user(void)
 #endif
 
 void matrix_scan_user(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   switch (layer) {
   case _QWERTY:
diff --git a/keyboards/mitosis/keymaps/nzen/keymap.c b/keyboards/mitosis/keymaps/nzen/keymap.c
index d9fd3641bc..c981441bc9 100644
--- a/keyboards/mitosis/keymaps/nzen/keymap.c
+++ b/keyboards/mitosis/keymaps/nzen/keymap.c
@@ -175,7 +175,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
     	case _QWERTY:
@@ -205,5 +205,3 @@ void matrix_scan_user(void) {
 void matrix_init_user(void) {
 	set_unicode_input_mode(UC_LNX); // or UC_WINC
 };
-
-
diff --git a/keyboards/mschwingen/modelm/modelm.c b/keyboards/mschwingen/modelm/modelm.c
index 7dcd4ac024..0ff58f4be3 100644
--- a/keyboards/mschwingen/modelm/modelm.c
+++ b/keyboards/mschwingen/modelm/modelm.c
@@ -163,8 +163,8 @@ void update_layer_leds(void) {
     static uint8_t old_layer         = 255;
     static uint8_t old_default_layer = 255;
 
-    layer         = biton32(layer_state);
-    default_layer = biton32(default_layer_state);
+    layer         = get_highest_layer(layer_state);
+    default_layer = get_highest_layer(default_layer_state);
 
     if (isRecording && timer_elapsed(blink_cycle_timer) > 150) {
         blink_state       = !blink_state;
diff --git a/keyboards/mwstudio/mw65_rgb/keymaps/via/keymap.c b/keyboards/mwstudio/mw65_rgb/keymaps/via/keymap.c
index 78a17233e3..ddcd3f6642 100644
--- a/keyboards/mwstudio/mw65_rgb/keymaps/via/keymap.c
+++ b/keyboards/mwstudio/mw65_rgb/keymaps/via/keymap.c
@@ -95,9 +95,9 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 bool encoder_update_user(uint8_t index, bool clockwise) {
   if (index == 0) {
     if (clockwise) {
-        tap_code(dynamic_keymap_get_keycode(biton32(layer_state), 4, 3));
+        tap_code(dynamic_keymap_get_keycode(get_highest_layer(layer_state), 4, 3));
     } else {
-        tap_code(dynamic_keymap_get_keycode(biton32(layer_state), 4, 4));
+        tap_code(dynamic_keymap_get_keycode(get_highest_layer(layer_state), 4, 4));
     }
   }
   return true;
diff --git a/keyboards/pearl/keymaps/cijanzen/keymap.c b/keyboards/pearl/keymaps/cijanzen/keymap.c
index 896e157fd6..5a3f1eb1cd 100644
--- a/keyboards/pearl/keymaps/cijanzen/keymap.c
+++ b/keyboards/pearl/keymaps/cijanzen/keymap.c
@@ -46,7 +46,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 /**
  * Status LED layer indicators courtesy of jetpacktuxedo's firmware
  */
-uint32_t layer_state_set_kb(uint32_t state)
+layer_state_t layer_state_set_kb(layer_state_t state)
 {
   if (state & (1<<1)) { // if we are on layer 1
     PORTD |= (1 << PD0); // light num lock led
diff --git a/keyboards/pearl/keymaps/jetpacktuxedo/keymap.c b/keyboards/pearl/keymaps/jetpacktuxedo/keymap.c
index 759c6fdc7d..4fd35f63ce 100644
--- a/keyboards/pearl/keymaps/jetpacktuxedo/keymap.c
+++ b/keyboards/pearl/keymaps/jetpacktuxedo/keymap.c
@@ -27,7 +27,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   ),
 };
 
-uint32_t layer_state_set_kb(uint32_t state) {
+layer_state_t layer_state_set_kb(layer_state_t state) {
   // if we are on layer 1
   if (state & (1<<1)){
     // light num lock led
diff --git a/keyboards/pearl/keymaps/phil/keymap.c b/keyboards/pearl/keymaps/phil/keymap.c
index 56326d423f..492c4cb0c5 100755
--- a/keyboards/pearl/keymaps/phil/keymap.c
+++ b/keyboards/pearl/keymaps/phil/keymap.c
@@ -64,7 +64,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
       ),
 };
 
-uint32_t layer_state_set_kb(uint32_t state) {
+layer_state_t layer_state_set_kb(layer_state_t state) {
   if (state & (1<<QWERTY)){
     PORTD &= ~(1 << PD0);
   } else {
diff --git a/keyboards/pearl/keymaps/rask/keymap.c b/keyboards/pearl/keymaps/rask/keymap.c
index bafb2b9738..30c8b6344f 100644
--- a/keyboards/pearl/keymaps/rask/keymap.c
+++ b/keyboards/pearl/keymaps/rask/keymap.c
@@ -43,7 +43,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 /**
  * Status LED layer indicators courtesy of jetpacktuxedo's firmware
  */
-uint32_t layer_state_set_kb(uint32_t state)
+layer_state_t layer_state_set_kb(layer_state_t state)
 {
     // if we are on layer 1
     if (state & (1<<1)){
diff --git a/keyboards/percent/canoe/keymaps/dhertz/keymap.c b/keyboards/percent/canoe/keymaps/dhertz/keymap.c
index 7e8170aefc..7d855e8fa7 100644
--- a/keyboards/percent/canoe/keymaps/dhertz/keymap.c
+++ b/keyboards/percent/canoe/keymaps/dhertz/keymap.c
@@ -49,8 +49,8 @@ void keyboard_post_init_user(void) {
     rgblight_sethsv_teal();
 }
 
-uint32_t layer_state_set_keymap(uint32_t state) {
-    switch (biton32(state)) {
+layer_state_t layer_state_set_keymap(layer_state_t state) {
+    switch (get_highest_layer(state)) {
         case 1:
             rgblight_sethsv_noeeprom_magenta();
             break;
diff --git a/keyboards/phoenix/phoenix.c b/keyboards/phoenix/phoenix.c
index a8e9a42a04..706a65b4de 100644
--- a/keyboards/phoenix/phoenix.c
+++ b/keyboards/phoenix/phoenix.c
@@ -74,7 +74,7 @@ void manipulate_led(uint32_t led, bool on) {
 }
 
 
-layer_state_t layer_state_set_kb(uint32_t state) {
+layer_state_t layer_state_set_kb(layer_state_t state) {
     state = layer_state_set_user(state);
 
     uint8_t layer = get_highest_layer(state);
diff --git a/keyboards/planck/keymaps/aviator/keymap.c b/keyboards/planck/keymaps/aviator/keymap.c
index 8fe66b3781..7ff410c767 100644
--- a/keyboards/planck/keymaps/aviator/keymap.c
+++ b/keyboards/planck/keymaps/aviator/keymap.c
@@ -142,7 +142,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     case LOWER:
       if (record->event.pressed) {
         layer_on(_LOWER);
-        uint8_t default_layer = biton32(default_layer_state);
+        uint8_t default_layer = get_highest_layer(default_layer_state);
         if (default_layer == _QWERTY) {
           #ifdef BACKLIGHT_BREATHING
             breathing_enable();
@@ -151,7 +151,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         update_tri_layer(_LOWER, _RAISE, _ADJUST);
       } else {
         layer_off(_LOWER);
-        uint8_t default_layer = biton32(default_layer_state);
+        uint8_t default_layer = get_highest_layer(default_layer_state);
         if (default_layer == _QWERTY) {
           #ifdef BACKLIGHT_BREATHING
             breathing_self_disable();
@@ -164,7 +164,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     case RAISE:
       if (record->event.pressed) {
         layer_on(_RAISE);
-        uint8_t default_layer = biton32(default_layer_state);
+        uint8_t default_layer = get_highest_layer(default_layer_state);
         if (default_layer == _QWERTY) {
           #ifdef BACKLIGHT_BREATHING
             breathing_enable();
@@ -173,7 +173,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         update_tri_layer(_LOWER, _RAISE, _ADJUST);
       } else {
         layer_off(_RAISE);
-        uint8_t default_layer = biton32(default_layer_state);
+        uint8_t default_layer = get_highest_layer(default_layer_state);
         if (default_layer == _QWERTY) {
           #ifdef BACKLIGHT_BREATHING
             breathing_self_disable();
diff --git a/keyboards/planck/keymaps/charlesrocket/keymap.c b/keyboards/planck/keymaps/charlesrocket/keymap.c
index cec3f0186a..bfe61294af 100644
--- a/keyboards/planck/keymaps/charlesrocket/keymap.c
+++ b/keyboards/planck/keymaps/charlesrocket/keymap.c
@@ -101,7 +101,7 @@ void set_layer_color(int layer) {
 
 void rgb_matrix_indicators_user(void) {
   if (g_suspend_state || keyboard_config.disable_layer_led) { return; }
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case 0:
       set_layer_color(0);
       break;
diff --git a/keyboards/planck/keymaps/grahampheath/keymap.c b/keyboards/planck/keymaps/grahampheath/keymap.c
index babe67c442..eb5401eabd 100644
--- a/keyboards/planck/keymaps/grahampheath/keymap.c
+++ b/keyboards/planck/keymaps/grahampheath/keymap.c
@@ -231,7 +231,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   bool has_layer_changed = true;
 
   void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
     static uint8_t old_layer = 0;
 
     if (old_layer != layer) {
diff --git a/keyboards/planck/keymaps/oryx/keymap.c b/keyboards/planck/keymaps/oryx/keymap.c
index 0368c98420..fae5a94713 100644
--- a/keyboards/planck/keymaps/oryx/keymap.c
+++ b/keyboards/planck/keymaps/oryx/keymap.c
@@ -94,7 +94,7 @@ void rgb_matrix_indicators_user(void) {
     if (keyboard_config.disable_layer_led) {
         return;
     }
-    switch (biton32(layer_state)) {
+    switch (get_highest_layer(layer_state)) {
         case 1:
             set_layer_color(0);
             break;
diff --git a/keyboards/planck/keymaps/rootiest/keymap.c b/keyboards/planck/keymaps/rootiest/keymap.c
index 857d7a9e21..c289c50e5b 100644
--- a/keyboards/planck/keymaps/rootiest/keymap.c
+++ b/keyboards/planck/keymaps/rootiest/keymap.c
@@ -502,7 +502,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
         } else {
             if (index == 0) { /* First encoder */
                 uint16_t held_keycode_timer = timer_read();
-                switch (biton32(layer_state)) {
+                switch (get_highest_layer(layer_state)) {
                     case 0:                                 // Base Layer
                         if ((get_mods() & MOD_MASK_GUI)) {  // GUI-ed
                             if (clockwise) {
diff --git a/keyboards/planck/keymaps/tom/keymap.c b/keyboards/planck/keymaps/tom/keymap.c
index 66beaf33b7..d888fb7b05 100644
--- a/keyboards/planck/keymaps/tom/keymap.c
+++ b/keyboards/planck/keymaps/tom/keymap.c
@@ -228,7 +228,7 @@ bool music_mask_user(uint16_t keycode) {
 
 void rgb_matrix_indicators_user(void) {
   #ifdef RGB_MATRIX_ENABLE
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case _RAISE:
       for (int i = 0; i < DRIVER_LED_TOTAL; i++) {
         if (HAS_FLAGS(g_led_config.flags[i], LED_FLAG_MODIFIER)) {
diff --git a/keyboards/planck/keymaps/tylerwince/keymap.c b/keyboards/planck/keymaps/tylerwince/keymap.c
index 5cbc47b2fb..b4c0f9af52 100644
--- a/keyboards/planck/keymaps/tylerwince/keymap.c
+++ b/keyboards/planck/keymaps/tylerwince/keymap.c
@@ -168,7 +168,7 @@ void set_layer_color(int layer) {
 
 void rgb_matrix_indicators_user(void) {
   if (g_suspend_state || disable_layer_color) { return; }
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case 0:
       set_layer_color(0);
       break;
@@ -276,7 +276,7 @@ bool music_mask_user(uint16_t keycode) {
 layer_state_t layer_state_set_user(layer_state_t state) {
     palClearPad(GPIOB, 8);
     palClearPad(GPIOB, 9);
-    uint8_t layer = biton32(state);
+    uint8_t layer = get_highest_layer(state);
     switch (layer) {
         case _LOWER:
             palSetPad(GPIOB, 9);
diff --git a/keyboards/preonic/keymaps/dudeofawesome/keymap.c b/keyboards/preonic/keymaps/dudeofawesome/keymap.c
index 2d2a252b23..812bf35a20 100644
--- a/keyboards/preonic/keymaps/dudeofawesome/keymap.c
+++ b/keyboards/preonic/keymaps/dudeofawesome/keymap.c
@@ -275,7 +275,7 @@ bool numpadActive = false;
 float tone_numpad_on[][2] = SONG(NUMPAD_ON_SOUND);
 
 void matrix_scan_user (void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   switch (layer) {
     case _NUMPAD:
diff --git a/keyboards/preonic/keymaps/senseored/keymap.c b/keyboards/preonic/keymaps/senseored/keymap.c
index e152507835..0f896700e6 100644
--- a/keyboards/preonic/keymaps/senseored/keymap.c
+++ b/keyboards/preonic/keymaps/senseored/keymap.c
@@ -367,7 +367,7 @@ bool dip_switch_update_user(uint8_t index, bool active) {
 
 layer_state_t layer_state_set_user(layer_state_t state) {
 //  if(rgblight_get_mode() == 1) {
-    switch (biton32(state)) {
+    switch (get_highest_layer(state)) {
     case _QWERTY:
         if(bnumlock) {
             tap_code(KC_NLCK);
diff --git a/keyboards/primekb/prime_e/keymaps/via/keymap.c b/keyboards/primekb/prime_e/keymaps/via/keymap.c
index 195f845cc2..2d1d003d51 100644
--- a/keyboards/primekb/prime_e/keymaps/via/keymap.c
+++ b/keyboards/primekb/prime_e/keymaps/via/keymap.c
@@ -108,7 +108,7 @@ void led_set_user(uint8_t usb_led) {
 //function for layer indicator LED
 layer_state_t layer_state_set_user(layer_state_t state)
 {
-    if (biton32(state) == 1) {
+    if (get_highest_layer(state) == 1) {
     writePinHigh(B3);
 	} else {
 		writePinLow(B3);
diff --git a/keyboards/redox_w/keymaps/italian/keymap.c b/keyboards/redox_w/keymaps/italian/keymap.c
index e67742c6a1..b4c815e4f5 100644
--- a/keyboards/redox_w/keymaps/italian/keymap.c
+++ b/keyboards/redox_w/keymaps/italian/keymap.c
@@ -53,7 +53,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //├────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┐       ┌────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┤
      KC_LSFT ,KC_Z    ,KC_X    ,KC_C    ,KC_V    ,KC_B    ,KC_ADPU ,KC_PGDN ,        KC_HOME ,KC_ADEN ,KC_N    ,KC_M    ,KC_COMM ,KC_DOT  ,IT_UGRV ,IT_SHSL ,
   //├────────┼────────┼────────┼────────┼────┬───┴────┬───┼────────┼────────┤       ├────────┼────────┼───┬────┴───┬────┼────────┼────────┼────────┼────────┤
-     GUI_LESS,KC_PPLS ,KC_PMNS ,KC_ALAS ,     KC_CTPL ,    KC_BSPC ,KC_DEL  ,        KC_ENT  ,KC_SPC  ,    ALT_IACC,     KC_LEFT ,KC_DOWN ,KC_UP   ,KC_RGHT 
+     GUI_LESS,KC_PPLS ,KC_PMNS ,KC_ALAS ,     KC_CTPL ,    KC_BSPC ,KC_DEL  ,        KC_ENT  ,KC_SPC  ,    ALT_IACC,     KC_LEFT ,KC_DOWN ,KC_UP   ,KC_RGHT
   //└────────┴────────┴────────┴────────┘    └────────┘   └────────┴────────┘       └────────┴────────┘   └────────┘    └────────┴────────┴────────┴────────┘
   ),
 
@@ -67,7 +67,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //├────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┐       ┌────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┤
      _______ ,IT_PERC ,IT_CIRC ,IT_LPRN ,IT_RPRN ,IT_TILD ,_______ ,_______ ,        _______ ,_______ ,XXXXXXX ,KC_KP_1 ,KC_KP_2 ,KC_KP_3 ,XXXXXXX ,XXXXXXX ,
   //├────────┼────────┼────────┼────────┼────┬───┴────┬───┼────────┼────────┤       ├────────┼────────┼───┬────┴───┬────┼────────┼────────┼────────┼────────┤
-     _______ ,_______ ,_______ ,_______ ,     _______ ,    _______ ,_______ ,        _______ ,_______ ,    KC_KP_0 ,     KC_KP_0 ,KC_PDOT ,XXXXXXX ,XXXXXXX 
+     _______ ,_______ ,_______ ,_______ ,     _______ ,    _______ ,_______ ,        _______ ,_______ ,    KC_KP_0 ,     KC_KP_0 ,KC_PDOT ,XXXXXXX ,XXXXXXX
   //└────────┴────────┴────────┴────────┘    └────────┘   └────────┴────────┘       └────────┴────────┘   └────────┘    └────────┴────────┴────────┴────────┘
   ),
 
@@ -81,7 +81,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //├────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┐       ┌────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┤
      XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,_______ ,_______ ,        _______ ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,
   //├────────┼────────┼────────┼────────┼────┬───┴────┬───┼────────┼────────┤       ├────────┼────────┼───┬────┴───┬────┼────────┼────────┼────────┼────────┤
-     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,     KC_BTN1 ,    KC_BTN2 ,_______ ,        _______ ,_______ ,    XXXXXXX ,     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX 
+     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,     KC_BTN1 ,    KC_BTN2 ,_______ ,        _______ ,_______ ,    XXXXXXX ,     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX
   //└────────┴────────┴────────┴────────┘    └────────┘   └────────┴────────┘       └────────┴────────┘   └────────┘    └────────┴────────┴────────┴────────┘
   ),
 
@@ -95,14 +95,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //├────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┐       ┌────────┼────────┼────────┼────────┼────────┼────────┼────────┼────────┤
      XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,_______ ,XXXXXXX ,        XXXXXXX ,_______ ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,
   //├────────┼────────┼────────┼────────┼────┬───┴────┬───┼────────┼────────┤       ├────────┼────────┼───┬────┴───┬────┼────────┼────────┼────────┼────────┤
-     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,     XXXXXXX ,    XXXXXXX ,XXXXXXX ,        XXXXXXX ,XXXXXXX ,    XXXXXXX ,     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX 
+     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX ,     XXXXXXX ,    XXXXXXX ,XXXXXXX ,        XXXXXXX ,XXXXXXX ,    XXXXXXX ,     XXXXXXX ,XXXXXXX ,XXXXXXX ,XXXXXXX
   //└────────┴────────┴────────┴────────┘    └────────┘   └────────┴────────┘       └────────┴────────┘   └────────┘    └────────┴────────┴────────┴────────┘
   )
 
 };
 
 void matrix_scan_user(void) {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
         case _QWERTY:
@@ -121,5 +121,3 @@ void matrix_scan_user(void) {
             break;
     }
 };
-
-
diff --git a/keyboards/redscarf_i/redscarf_i.c b/keyboards/redscarf_i/redscarf_i.c
index a8a685b13b..039e20664d 100644
--- a/keyboards/redscarf_i/redscarf_i.c
+++ b/keyboards/redscarf_i/redscarf_i.c
@@ -36,7 +36,7 @@ bool led_update_kb(led_t led_state) {
 }
 
 layer_state_t layer_state_set_kb(layer_state_t state) {
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case 1:
       writePinHigh(F6);
       writePinLow(F5);
diff --git a/keyboards/rgbkb/pan/keymaps/default/keymap.c b/keyboards/rgbkb/pan/keymaps/default/keymap.c
index dbc127616a..dcafeec765 100644
--- a/keyboards/rgbkb/pan/keymaps/default/keymap.c
+++ b/keyboards/rgbkb/pan/keymaps/default/keymap.c
@@ -75,7 +75,7 @@ bool oled_task_user(void) {
     // Host Keyboard Layer Status
     oled_write_P(PSTR("RGBKB Pan\n"), false);
     oled_write_P(PSTR("Layer: "), false);
-    uint8_t layer = layer_state ? biton(layer_state) : biton32(default_layer_state);
+    uint8_t layer = get_highest_layer(layer_state|default_layer_state);
     switch (layer) {
         case _QWERTY:
             oled_write_P(PSTR("Default\n"), false);
diff --git a/keyboards/rgbkb/sol/keymaps/default/keymap.c b/keyboards/rgbkb/sol/keymaps/default/keymap.c
index c82259f5ee..1ce18bc1ab 100644
--- a/keyboards/rgbkb/sol/keymaps/default/keymap.c
+++ b/keyboards/rgbkb/sol/keymaps/default/keymap.c
@@ -233,7 +233,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
   } else
 #endif
   {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
     uint16_t keycode = pgm_read_word(&encoders[layer][index][clockwise]);
     while (keycode == KC_TRANSPARENT && layer > 0)
     {
@@ -325,7 +325,7 @@ static void render_status(void) {
 
   // Define layers here
   oled_write_P(PSTR("Layer"), false);
-  uint8_t layer = layer_state ? biton(layer_state) : biton32(default_layer_state);
+  uint8_t layer = get_highest_layer(layer_state|default_layer_state);
   switch (layer) {
     case _QWERTY:
       oled_write_P(PSTR("BASE "), false);
diff --git a/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c b/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c
index bdcfbb1b93..bc0884c8e4 100644
--- a/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c
+++ b/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c
@@ -263,7 +263,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
   } else
 #endif
   {
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
     uint16_t keycode = encoders[layer][index][clockwise];
     while (keycode == KC_TRANSPARENT && layer > 0)
     {
@@ -306,7 +306,7 @@ static void render_status(void) {
 
   // Define layers here
   oled_write_P(PSTR("     Layer-----"), false);
-  uint8_t layer = layer_state ? biton(layer_state) : biton32(default_layer_state);
+  uint8_t layer = layer_state ? get_highest_layer(layer_state) : get_highest_layer(default_layer_state);
   switch (layer) {
     case _DVORAK:
       oled_write_P(PSTR("DVRAK"), false);
diff --git a/keyboards/rgbkb/zen/rev2/rev2.c b/keyboards/rgbkb/zen/rev2/rev2.c
index 5461890272..70e5531673 100644
--- a/keyboards/rgbkb/zen/rev2/rev2.c
+++ b/keyboards/rgbkb/zen/rev2/rev2.c
@@ -37,7 +37,7 @@ void render_status(void) {
   // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
   oled_set_cursor(0, 3); // Line 3
   oled_write_P(PSTR("Layer"), false); // Line 4
-  oled_write_P(layer_name_user(biton32(layer_state)), false);
+  oled_write_P(layer_name_user(get_highest_layer(layer_state)), false);
 
   // Host Keyboard LED Status
   uint8_t led_usb_state = host_keyboard_leds();
diff --git a/keyboards/rgbkb/zygomorph/keymaps/default_oled/keymap.c b/keyboards/rgbkb/zygomorph/keymaps/default_oled/keymap.c
index 48bd1a33f7..f4d5c82a71 100644
--- a/keyboards/rgbkb/zygomorph/keymaps/default_oled/keymap.c
+++ b/keyboards/rgbkb/zygomorph/keymaps/default_oled/keymap.c
@@ -198,7 +198,7 @@ static void render_status(void) {
 
   // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
   oled_write_P(PSTR("Layer: "), false);
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
     case _QWERTY:
       oled_write_ln_P(PSTR("QWERTY"), false);
       break;
diff --git a/keyboards/satt/comet46/keymaps/default-rgbled/keymap.c b/keyboards/satt/comet46/keymaps/default-rgbled/keymap.c
index 6c88b70bfe..1e96bd7fbc 100644
--- a/keyboards/satt/comet46/keymaps/default-rgbled/keymap.c
+++ b/keyboards/satt/comet46/keymaps/default-rgbled/keymap.c
@@ -173,7 +173,7 @@ void matrix_init_user(void) {
 }
 
 void matrix_scan_user(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
   uint8_t default_layer = biton32(eeconfig_read_default_layer());
   switch (layer) {
     case _LOWER:
diff --git a/keyboards/satt/comet46/keymaps/default/keymap.c b/keyboards/satt/comet46/keymaps/default/keymap.c
index cf2c911d4c..bccca0a091 100644
--- a/keyboards/satt/comet46/keymaps/default/keymap.c
+++ b/keyboards/satt/comet46/keymaps/default/keymap.c
@@ -176,8 +176,8 @@ void render_status(struct CharacterMatrix *matrix) {
   // Layer state
   char layer_str[22];
   matrix_write(matrix, "Layer: ");
-  uint8_t layer = biton32(layer_state);
-  uint8_t default_layer = biton32(eeconfig_read_default_layer());
+  uint8_t layer = get_highest_layer(layer_state);
+  uint8_t default_layer = get_highest_layer(eeconfig_read_default_layer());
   switch (layer) {
     case _QWERTY:
       switch (default_layer) {
diff --git a/keyboards/satt/comet46/keymaps/satt/keymap.c b/keyboards/satt/comet46/keymaps/satt/keymap.c
index cdd094f747..54d1d791d7 100644
--- a/keyboards/satt/comet46/keymaps/satt/keymap.c
+++ b/keyboards/satt/comet46/keymaps/satt/keymap.c
@@ -165,7 +165,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case _PSEUDO_US_LOWER:
     case _PSEUDO_US_RAISE:
       return update_tri_layer_state(state, _PSEUDO_US_RAISE, _PSEUDO_US_LOWER, _ADJUST);
@@ -204,7 +204,7 @@ void render_status(struct CharacterMatrix *matrix) {
   // Layer state
   char layer_str[22];
   matrix_write(matrix, "Layer: ");
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
   uint8_t default_layer = biton32(eeconfig_read_default_layer());
     switch (layer) {
       case _QWERTY:
diff --git a/keyboards/splitkb/kyria/keymaps/j-inc/keymap.c b/keyboards/splitkb/kyria/keymaps/j-inc/keymap.c
index af583a607f..f193c6e00c 100644
--- a/keyboards/splitkb/kyria/keymaps/j-inc/keymap.c
+++ b/keyboards/splitkb/kyria/keymaps/j-inc/keymap.c
@@ -341,7 +341,7 @@ bool oled_task_user(void) {
 
 #ifdef ENCODER_ENABLE
 bool encoder_update_user(uint8_t index, bool clockwise) {
-    switch(biton32(layer_state)){
+    switch(get_highest_layer(layer_state)){
         case 1:
             if (clockwise) {
                 tap_code16(C(KC_TAB));
diff --git a/keyboards/splitkb/kyria/keymaps/ninjonas/oled.c b/keyboards/splitkb/kyria/keymaps/ninjonas/oled.c
index 813328aa0c..d0f2a1b6cd 100644
--- a/keyboards/splitkb/kyria/keymaps/ninjonas/oled.c
+++ b/keyboards/splitkb/kyria/keymaps/ninjonas/oled.c
@@ -111,7 +111,7 @@ void oled_slash_separator(void){
 
 void render_layout_state(void) {
   oled_write_P(PSTR("Layout: "), false);
-  switch (biton32(default_layer_state)) {
+  switch (get_highest_layer(default_layer_state)) {
       case _COLEMAK:
         oled_write_P(PSTR("Colemak"), false);
         break;
diff --git a/keyboards/splitkb/kyria/keymaps/thomasbaart/keymap.c b/keyboards/splitkb/kyria/keymaps/thomasbaart/keymap.c
index 0a4f1887c3..3cd9df27fb 100644
--- a/keyboards/splitkb/kyria/keymaps/thomasbaart/keymap.c
+++ b/keyboards/splitkb/kyria/keymaps/thomasbaart/keymap.c
@@ -311,7 +311,7 @@ bool oled_task_user(void) {
 #ifdef ENCODER_ENABLE
 bool encoder_update_user(uint8_t index, bool clockwise) {
     if (index == 0) {
-        switch (biton32(layer_state)) {
+        switch (get_highest_layer(layer_state)) {
             case QWERTY:
                 // History scrubbing. For Adobe products, hold shift while moving
                 // backward to go forward instead.
@@ -336,7 +336,7 @@ bool encoder_update_user(uint8_t index, bool clockwise) {
                 break;
         }
     } else if (index == 1) {
-        switch (biton32(layer_state)) {
+        switch (get_highest_layer(layer_state)) {
             case QWERTY:
                 // Scrolling with PageUp and PgDn.
                 if (clockwise) {
diff --git a/keyboards/splitography/keymaps/jeandeaual/keymap.c b/keyboards/splitography/keymaps/jeandeaual/keymap.c
index 6679d835f2..87c4159443 100644
--- a/keyboards/splitography/keymaps/jeandeaual/keymap.c
+++ b/keyboards/splitography/keymaps/jeandeaual/keymap.c
@@ -225,7 +225,7 @@ bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
             }
             return false;
         case KC_QUOT:
-            if ((base_layer != dvorak) || (biton32(layer_state) != _BLUE)) {
+            if ((base_layer != dvorak) || (get_highest_layer(layer_state) != _BLUE)) {
                 break;
             }
             if (record->event.pressed) {
diff --git a/keyboards/splitography/keymaps/multi/keymap.c b/keyboards/splitography/keymaps/multi/keymap.c
index af1cc1a801..7d847e40b6 100644
--- a/keyboards/splitography/keymaps/multi/keymap.c
+++ b/keyboards/splitography/keymaps/multi/keymap.c
@@ -331,7 +331,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
             }
             return false;
         case KC_QUOT:
-            if ((base_layer != dvorak) || (biton32(layer_state) != _BLUE)) {
+            if ((base_layer != dvorak) || (get_highest_layer(layer_state) != _BLUE)) {
                 break;
             }
             if (record->event.pressed) {
diff --git a/keyboards/tetris/keymaps/default/keymap.c b/keyboards/tetris/keymaps/default/keymap.c
index 1b53ea80b9..9e2a96ffc3 100755
--- a/keyboards/tetris/keymaps/default/keymap.c
+++ b/keyboards/tetris/keymaps/default/keymap.c
@@ -37,7 +37,7 @@ void matrix_init_user(void) {
 }
 
 void matrix_scan_user(void) {
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
 
   if (RGB_encoder_dir != 0) {
     if (timer_elapsed(RGB_encoder_timer) > 1400) {
@@ -152,7 +152,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t * record) {
 bool encoder_update_user(uint8_t index, bool clockwise) {
   RGB_encoder_timer = timer_read();
   RGB_encoder_timer2 = timer_read();
-  uint8_t layer = biton32(layer_state);
+  uint8_t layer = get_highest_layer(layer_state);
   if (clockwise) {
     RGB_encoder_dir = 1;
   } else {
diff --git a/keyboards/thevankeyboards/roadkit/keymaps/flipphone/keymap.c b/keyboards/thevankeyboards/roadkit/keymaps/flipphone/keymap.c
index b00cf80f5c..a6fa5ed722 100644
--- a/keyboards/thevankeyboards/roadkit/keymaps/flipphone/keymap.c
+++ b/keyboards/thevankeyboards/roadkit/keymaps/flipphone/keymap.c
@@ -147,7 +147,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       return false;
     }
     uint8_t layer;
-    layer = biton32(layer_state);
+    layer = get_highest_layer(layer_state);
 
     switch (keycode) {
     case FPH_1 ... FPH_9:
diff --git a/keyboards/v60_type_r/keymaps/xtonhasvim/keymap.c b/keyboards/v60_type_r/keymaps/xtonhasvim/keymap.c
index 82a7e52808..8927a8ee0a 100644
--- a/keyboards/v60_type_r/keymaps/xtonhasvim/keymap.c
+++ b/keyboards/v60_type_r/keymaps/xtonhasvim/keymap.c
@@ -104,7 +104,7 @@ void rgbflag(uint8_t r, uint8_t g, uint8_t b) {
 }
 
 void set_state_leds(void) {
-  switch (biton32(layer_state)) {
+  switch (get_highest_layer(layer_state)) {
   case _MOVE:
     rgbflag(C_BLU);
     break;
@@ -192,4 +192,3 @@ void suspend_wakeup_init_user(void)
   backlight_set(backlight_config.level);
   rgblight_set();
 }
-
diff --git a/keyboards/xiudi/xd60/keymaps/birkir/keymap.c b/keyboards/xiudi/xd60/keymaps/birkir/keymap.c
index fe7cd60662..ab129332c9 100644
--- a/keyboards/xiudi/xd60/keymaps/birkir/keymap.c
+++ b/keyboards/xiudi/xd60/keymaps/birkir/keymap.c
@@ -47,7 +47,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
     edit = false;
   }
 
-  switch (biton32(state)) {
+  switch (get_highest_layer(state)) {
     case 1:
       rgblight_mode(1);
       rgblight_setrgb(0xD3, 0x7F, 0xED);
diff --git a/keyboards/xiudi/xd60/keymaps/kmontag42/keymap.c b/keyboards/xiudi/xd60/keymaps/kmontag42/keymap.c
index 8e081c6731..d17fc2f35d 100644
--- a/keyboards/xiudi/xd60/keymaps/kmontag42/keymap.c
+++ b/keyboards/xiudi/xd60/keymaps/kmontag42/keymap.c
@@ -25,7 +25,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 // Loop
 void matrix_scan_user(void) {
   static uint8_t old_layer = 255;
-  uint8_t new_layer = biton32(layer_state);
+  uint8_t new_layer = get_highest_layer(layer_state);
 
   if (old_layer != new_layer) {
     switch (new_layer) {
diff --git a/keyboards/xiudi/xd75/keymaps/arpinfidel/keymap.c b/keyboards/xiudi/xd75/keymaps/arpinfidel/keymap.c
index 5f7337d68b..c278df1b21 100644
--- a/keyboards/xiudi/xd75/keymaps/arpinfidel/keymap.c
+++ b/keyboards/xiudi/xd75/keymaps/arpinfidel/keymap.c
@@ -100,7 +100,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
 // Runs whenever there is a layer state change.
 layer_state_t layer_state_set_user(layer_state_t state) {
-  uint8_t layer = biton32(state);
+  uint8_t layer = get_highest_layer(state);
 
   gp100_led_off();
   gp103_led_off();
diff --git a/keyboards/xiudi/xd75/keymaps/cbbrowne/keymap.c b/keyboards/xiudi/xd75/keymaps/cbbrowne/keymap.c
index 1b29686cff..a0295f2f45 100644
--- a/keyboards/xiudi/xd75/keymaps/cbbrowne/keymap.c
+++ b/keyboards/xiudi/xd75/keymaps/cbbrowne/keymap.c
@@ -286,7 +286,7 @@ void matrix_init_user(void) {
 }
 
 layer_state_t layer_state_set_user(layer_state_t state) {
-  switch(biton32(state)) {
+  switch(get_highest_layer(state)) {
   case _QWERTY:
     rgblight_sethsv_white();
     break;
diff --git a/keyboards/xiudi/xd75/keymaps/kloki/keymap.c b/keyboards/xiudi/xd75/keymaps/kloki/keymap.c
index a630019347..d25a16fbb6 100644
--- a/keyboards/xiudi/xd75/keymaps/kloki/keymap.c
+++ b/keyboards/xiudi/xd75/keymaps/kloki/keymap.c
@@ -70,7 +70,7 @@ bool WINDOWN = false;
 bool SHIFTDOWN = false;
 void matrix_scan_user(void) {
 
-    uint8_t layer = biton32(layer_state);
+    uint8_t layer = get_highest_layer(layer_state);
 
     switch (layer) {
         case 0:
diff --git a/keyboards/xiudi/xd75/keymaps/tdl-jturner/keymap.c b/keyboards/xiudi/xd75/keymaps/tdl-jturner/keymap.c
index b7b98cd4c5..f48eb94214 100644
--- a/keyboards/xiudi/xd75/keymaps/tdl-jturner/keymap.c
+++ b/keyboards/xiudi/xd75/keymaps/tdl-jturner/keymap.c
@@ -180,7 +180,7 @@ void matrix_init_user(void) {
 
 //Set a color based on the layer
 layer_state_t layer_state_set_user(layer_state_t state) {
-  switch(biton32(state)) {
+  switch(get_highest_layer(state)) {
     case _LYFK:
       rgblight_setrgb_user_LYFK();
       break;