/* Optional gallery treatment. Remove photo-dark from the page to revert. */
body.photo-dark {
  --paper: #202522;
  --ink: #f1f0ea;
  --muted: #bdc5bd;
  --green: #d6e3d3;
  --rule: #454e46;
}
.photo-dark .photo img {
  border: 3px solid #f8f7f3;
}