message: dark theme - pre element font color
diff: background: #242425;
  box-shadow: 0px 4px 16px rgba(243, 243, 243, 0.08), 0px 1px 4px rgba(240, 233, 233, 0.08);
  + pre {
  + color: #fff !important;
  + }
  +
  @media screen and (max-width: 480px) {
  box-shadow: none;
  background: #222528;
  