source/style/highlight.scss
@import "variables";

/* Tomorrow Theme */
.tomorrow-comment, pre .comment, pre .title {
  color: #8e908c;
}

.tomorrow-red, pre .variable, pre .attribute, pre .tag, pre .regexp, pre .ruby .constant, pre .xml .tag .title, pre .xml .pi, pre .xml .doctype, pre .html .doctype, pre .css .id, pre .css .class, pre .css .pseudo {
  color: #c82829;
}

.tomorrow-orange, pre .number, pre .preprocessor, pre .built_in, pre .literal, pre .params, pre .constant {
  color: #f5871f;
}

.tomorrow-yellow, pre .class, pre .ruby .class .title, pre .css .rules .attribute {
  color: #eab700;
}

.tomorrow-green, pre .string, pre .value, pre .inheritance, pre .header, pre .ruby .symbol, pre .xml .cdata {
  color: #718c00;
}

.tomorrow-aqua, pre .css .hexcolor {
  color: #3e999f;
}

.tomorrow-blue, pre .function, pre .python .decorator, pre .python .title, pre .ruby .function .title, pre .ruby .title .keyword, pre .perl .sub, pre .javascript .title, pre .coffeescript .title {
  color: #4271ae;
}

.tomorrow-purple, pre .keyword, pre .javascript .function {
  color: #8959a8;
}

pre code {
  display: block;
  background-color: $white;
  color: #4d4d4c;
  line-height: 1.5;
  border: 1px solid #ccc;
  padding: 10px;

  @media (prefers-color-scheme: dark) {
    background-color: lighten($dark-mode-post-background, 5%);
  }
}
