doccy-dark.css

@media screen and (prefers-color-scheme: dark) {
  body {
    background: #333;
    color: #c6c6c6;
  }
  div#sidebar {
    background: #444;
    border-right: 1px solid #666;
    box-shadow: 0 0 20px #555; -webkit-box-shadow: 0 0 20px #555; -moz-box-shadow: 0 0 20px #555;
  }
  a.toc_title, a.toc_title:visited {
    color: #f4f4f4;
  }
  a.toc_title:hover {
    text-decoration: underline;
  }
  .toc_section li a {
    text-decoration: none;
    color: #f4f4f4;
  }
  img#logo {
    filter: brightness(0) invert(1);
  }
  div.warning {
    color: #CC6060;
  }
  a, a:visited {
    color: #f4f4f4;
  }
  a:active, a:hover {
    color: #ffffff;
  }
  table .rule {
    background: #777;
  }
  tt {
    background: #444;
    border: 1px solid #777;
  }
  pre {
    border-left: 5px solid #aaa;
  }
}