Bookmarklet - Simple Dark Theme for web pages, but without: 1) Affecting iframes (like embedded YouTube) 2) Images that use background-image= instead of <img 3) Outdated style type

darkthemeswitcher-inline.js

javascript:(d=>{var css=`:root{background-color:#fefefe;filter:invert(100%)}iframe,[style*="background-image:"]:not([style$=".svg)"]),img:not([src*=".svg"]),video{filter:invert(100%)}`,style,id="dark-theme-snippet",ee=d.getElementById(id);if(null!=ee)ee.parentNode.removeChild(ee);else{style=d.createElement('style');style.id=id;if(style.styleSheet)style.styleSheet.cssText=css;else style.appendChild(d.createTextNode(css));(d.head||d.querySelector('head')).appendChild(style);}})(document)

darkthemeswitcher.js

(d=>{
  var css = `
        :root{
          background-color: #fefefe;
          filter: invert(100%)
        }
        /* * {
          background-color: inherit
        }*/
        iframe, [style*="background-image:"]:not([style$=".svg)"]), img:not([src*=".svg"]), video{
          filter: invert(100%)
        }
  `,
  style,
  id="dark-theme-snippet",
  ee = d.getElementById(id);
  if (null != ee) ee.parentNode.removeChild(ee);
  else {
    style = d.createElement('style');
    style.id = id;
    if (style.styleSheet) style.styleSheet.cssText = css;
    else style.appendChild(d.createTextNode(css));
    (d.head||d.querySelector('head')).appendChild(style);
  }
})(document)