const themes = ["system", "dark", "light"];
let theme = window.localStorage.getItem("gractwopl-theme");
if (!themes.includes(theme)) {
  window.localStorage.setItem("gractwopl-theme", "system");
}
theme = window.localStorage.getItem("gractwopl-theme");
if (theme === "system") {
  if (window.matchMedia("(prefers-color-scheme: dark)").matches) {
    document.documentElement.classList.add("dark");
  }
}
if (themes.includes(theme)) {
  document.documentElement.classList.add(theme);
}