-#define RGB_BACKLIGHT_USE_SPLIT_LEFT_SHIFT 0
-#define RGB_BACKLIGHT_USE_SPLIT_RIGHT_SHIFT 1
-#define RGB_BACKLIGHT_USE_7U_SPACEBAR 0
-#define RGB_BACKLIGHT_USE_ISO_ENTER 0
+#define RGB_BACKLIGHT_USE_SPLIT_LEFT_SHIFT 0 // Unused
+#define RGB_BACKLIGHT_USE_SPLIT_RIGHT_SHIFT 0 // Unused
+#define RGB_BACKLIGHT_USE_7U_SPACEBAR 1 // Used only for stab LED matching spacebar LED
+#define RGB_BACKLIGHT_USE_ISO_ENTER 0 // Unused