:root {
  color-scheme: only dark;

  --BACKGROUND: #11181a;
  --BACKGROUND_BLOCK_PRIMARY: #234;
  --BACKGROUND_BLOCK_PRIMARY_DARKER: #123;
  --BACKGROUND_BLOCK_SECONDARY: #000;
  --BACKGROUND_TOP_BAR: #345;
  --BACKGROUND_BOTTOM_BAR_BUTTON: #345;
  --BACKGROUND_BOTTOM_BAR_BUTTON_HOVER: #456;
  --BACKGROUND_BOTTOM_BAR_BUTTON_ACTIVE: #268;
  --BACKGROUND_BOTTOM_BAR_BUTTON_ACTIVE_HOVER: #268;
  --BACKGROUND_BOTTOM_BAR: #345;
  --BACKGROUND_SELECTED: #468;
  --TEXT: #ddd;
  --TEXT_ON_ACCENT: #222;
  --TEXT_ON_ACCENT_DISABLED: #111;
  --TEXT_HIGH: #fff;
  --TEXT_LOW: #888;
  --TEXT_DISABLED: #666;
  --TEXT_ERROR: #f22;
  --ACCENT_PRIMARY: #8cf;
  --ACCENT_PRIMARY_FOR_BACKGROUND: #268;
  --ACCENT_SECONDARY: #aaa;
  --ACCENT_DISABLED_PRIMARY: #333;
  --ACCENT_DISABLED_SECONDARY: #555;

  --TASK_BACKGROUND: #121d2f;
  --TASK_TEXT: #388bfd;
  --TEST_BACKGROUND: #2d230b;
  --TEST_TEXT: #d29922;
  --HOMEWORK_YET_DONE_BACKGROUND: #2d1615;
  --HOMEWORK_YET_DONE_TEXT: #f85149;
  --HOMEWORK_DONE_BACKGROUND: #0d2a1e;
  --HOMEWORK_DONE_TEXT: #3fb950;

  --TOOLTIP_BACKGROUND: #234;
  --TOOLTIP_TEXT: #ddd;

  --TOGGLE_BACKGROUND_OFF: #222;
  --TOGGLE_BORDER_OFF: #666;
  --TOGGLE_BACKGROUND_ON: #8cf;
  --TOGGLE_BACKGROUND_ON_: #234;
  /** TODO: ボタン用変数を作成 **/
  /** TODO: アイコン用変数を作成 **/
}