Add Keebio lighting defaults (#8884)

* Set Iris LED/RGB defaults

* Add lighting defaults for more boards

keyboards/keebio/iris/rev3/rev3.c

@@ -1,12 +1,5 @@
 #include "rev3.h"
 
-#ifdef SSD1306OLED
-void led_set_kb(uint8_t usb_led) {
-    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
-    led_set_user(usb_led);
-}
-#endif
-
 #ifdef SWAP_HANDS_ENABLE
 __attribute__ ((weak))
 // swap-hands action needs a matrix to define the swap
@@ -25,3 +18,20 @@ const keypos_t hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = {
     {{0,4}, {1,4}, {2,4}, {3,4}, {4,4}, {5,4}},
 };
 #endif
+
+void eeconfig_init_kb(void) {
+#ifdef BACKLIGHT_ENABLE
+    backlight_enable();
+    backlight_level(3);
+#endif
+#ifdef RGBLIGHT_ENABLE
+    rgblight_enable(); // Enable RGB by default
+    rgblight_sethsv(0, 255, 255);  // Set default HSV - red hue, full saturation, full brightness
+#ifdef RGBLIGHT_ANIMATIONS
+    rgblight_mode(RGBLIGHT_MODE_RAINBOW_SWIRL + 2); // set to RGB_RAINBOW_SWIRL by default
+#endif
+#endif
+
+    eeconfig_update_kb(0);
+    eeconfig_init_user();
+}