yaak-mountain-loop/src-web/hooks/usePreferredAppearance.ts

import { useEffect, useState } from "react";
import type { Appearance } from "../lib/theme/appearance";
import { getCSSAppearance, subscribeToPreferredAppearance } from "../lib/theme/appearance";

export function usePreferredAppearance() {
  const [preferredAppearance, setPreferredAppearance] = useState<Appearance>(getCSSAppearance());
  useEffect(() => subscribeToPreferredAppearance(setPreferredAppearance), []);
  return preferredAppearance;
}