+ return false;
+ case WORKMAN:
+ if (record->event.pressed) {
+ set_single_persistent_default_layer(_WORKMAN);
+ }
+ return false;
+ case COLEMAK:
+ if (record->event.pressed) {
+ set_single_persistent_default_layer(_COLEMAK);
+ }
+ return false;
+ case DVORAK:
+ if (record->event.pressed) {
+ set_single_persistent_default_layer(_DVORAK);
+ }
+ return false;
+ case LOWER:
+ if (record->event.pressed) {
+ layer_on(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ case RAISE:
+ if (record->event.pressed) {
+ layer_on(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ case BACKLIT:
+ if (record->event.pressed) {
+ register_code(KC_RSFT);
+ #ifdef BACKLIGHT_ENABLE
+ backlight_step();
+ #endif
+ PORTE &= ~(1<<6);
+ } else {
+ unregister_code(KC_RSFT);
+ PORTE |= (1<<6);
+ }
+ return false;
+ }
+ return true;
+};
+
+bool numpadActive = false;
+
+float tone_numpad_on[][2] = SONG(NUMPAD_ON_SOUND);
+
+void matrix_scan_user (void) {
+ uint8_t layer = biton32(layer_state);
+
+ switch (layer) {
+ case _NUMPAD:
+ if (!numpadActive) {
+ numpadActive = true;
+ PLAY_SONG(tone_numpad_on);
+ }
+ break;
+ default:
+ if (numpadActive) {
+ numpadActive = false;
+ }
+ }