#include QMK_KEYBOARD_H

#define _MAIN 0
#define _FN 1

#define KC_X0 LT(_FN, KC_ESC)

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [_MAIN] = LAYOUT(
     KC_VOLU, KC_MPLY, KC_MPRV, KC_PGUP,
     KC_VOLD, KC_MUTE, KC_MNXT, KC_PGDN
  ),

  [_FN] = LAYOUT(
     KC_F,    _______, UG_HUEU, _______,
     UG_TOGG, UG_NEXT, UG_HUED, _______
  )
};