Light/Dark Mode

light-dark.txt

CSS : 
  @media (prefers-dark-interface) { 
    color: white; background: black 
  }


JS : 
  if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
    // dark mode
  }

  window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', e => {
    const newColorScheme = e.matches ? "dark" : "light";
  });