phanpy/src/cloak-mode.css

body.cloak a {
  text-decoration-color: var(--link-color);
}

body.cloak .name-text,
body.cloak .name-text *,
body.cloak .status .content-container,
body.cloak .status .content-container *,
body.cloak .status .content-compact,
body.cloak .account-container :is(header, main > *:not(.actions)),
body.cloak .account-container :is(header, main > *:not(.actions)) *,
body.cloak .header-account,
body.cloak .account-block {
  text-decoration-thickness: 1.1em;
  text-decoration-line: line-through;
  text-rendering: optimizeSpeed;
  filter: opacity(0.5);
}
body.cloak .name-text *,
body.cloak .status .content-container *,
body.cloak .account-container :is(header, main > *:not(.actions)) * {
  filter: none;
}

body.cloak .status :is(img, video, audio),
body.cloak .avatar,
body.cloak .emoji,
body.cloak .header-banner {
  filter: contrast(0) !important;
  background-color: #000 !important;
}

/* SPECIAL CASES */

@supports (display: -webkit-box) {
  body.cloak .card :is(.title, .meta) {
    background-color: var(--text-color) !important;
  }
}