generic Stylus user style for dark mode

user-style.css

:root { /* Borrowed from nim-lang.org */
  --primary-background: #171921;
  --secondary-background: #1e202a;
  --third-background: #2b2e3b;
  --border: #0e1014;
  --text: #fff;
  --anchor: #8be9fd;
  --anchor-focus: #8be9fd;
  --input-focus: #8be9fd;
  --strong: #bd93f9;
  --hint: #7A7C85;
  --keyword: #ff79c6;
  --identifier: #f8f8f2;
  --comment: #6272a4;
  --operator: #ff79c6;
  --punctuation: #f8f8f2;
  --other: #f8f8f2;
  --escapeSequence: #bd93f9;
  --number: #bd93f9;
  --literal: #f1fa8c;
  --raw-data: #8be9fd;
  --bg-custom: url(data:image/png;base64,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);
    --bg-img: url(https://camo.githubusercontent.com/5b8e4cd1a5ce69b6affa17ebd8e4aee00c147618/68747470733a2f2f7374796c6973687468656d65732e6769746875622e696f2f4769744875622d4461726b2f696d616765732f6261636b67726f756e64732f62672d63726f737368617463682e706e67);
}

html body,
body div[class^="chat-app"],
h1, h2, h3, h4, h5,
header, main, footer, p, strong, ul, ol, li, section {
    background: #222 !important;
    color: #eee !important;
    background-image: var(--bg-custom) !important;
    text-rendering: optimizeLegibility;
}

table,thead,tbody,th,td,
code, code *, pre, pre * {
    background: #222 !important;
    color: #eee !important;
    text-rendering: optimizeLegibility;
}
table td,
table th {
    border-bottom: 1px dotted #666 !important;
}

*::selection,
*::-moz-selection {
    background: rgba(212, 212, 212, 0.7);
    color: #111;
}

a {
    color: #1199ee !important;
}
a:visited {
    color: #5544aa !important;
}

code, pre {
    background: #223344 !important;
    color: #ebebeb !important;
}