2 files changed, 9 insertions, 0 deletions

diff --git a/quantum/process_keycode/process_rgb.c b/quantum/process_keycode/process_rgb.c
index 5dd8e7809..167c0c03c 100644
--- a/quantum/process_keycode/process_rgb.c
+++ b/quantum/process_keycode/process_rgb.c
@@ -207,6 +207,11 @@ bool process_rgb(const uint16_t keycode, const keyrecord_t *record) {
                 rgblight_mode(RGBLIGHT_MODE_RGB_TEST);
 #endif
                 return false;
+            case RGB_MODE_TWINKLE:
+#if defined(RGBLIGHT_ENABLE) && !defined(RGBLIGHT_DISABLE_KEYCODES) && defined(RGBLIGHT_EFFECT_TWINKLE)
+                handleKeycodeRGBMode(RGBLIGHT_MODE_TWINKLE, RGBLIGHT_MODE_TWINKLE_end);
+#endif
+                return false;
         }
     }
 
diff --git a/quantum/quantum_keycodes.h b/quantum/quantum_keycodes.h
index b6353081c..26021598a 100644
--- a/quantum/quantum_keycodes.h
+++ b/quantum/quantum_keycodes.h
@@ -511,6 +511,9 @@ enum quantum_keycodes {
     ONESHOT_DISABLE,
     ONESHOT_TOGGLE,
 
+    // RGB underglow/matrix (continued)
+    RGB_MODE_TWINKLE,
+
     // Start of custom keycode range for keyboards and keymaps - always leave at the end
     SAFE_RANGE
 };
@@ -654,6 +657,7 @@ enum quantum_keycodes {
 #define RGB_M_X RGB_MODE_XMAS
 #define RGB_M_G RGB_MODE_GRADIENT
 #define RGB_M_T RGB_MODE_RGBTEST
+#define RGB_M_TW RGB_MODE_TWINKLE
 
 // Magic aliases
 #define CL_SWAP MAGIC_SWAP_CONTROL_CAPSLOCK