Custom font on GitHub

To set your favourite font to be on GitHub you need:

  1. Refined GitHub extension
  2. Go to options of this extension. For Chrome: click on 3 dots on installed extension on Extensions list and select Options
  3. Paste following CSS into Custom CSS text-area
pre,
code,
.blob-code,
.blob-code-marker,
.input-monospace,
.blob-code-inner,
.markdown-body code {
  font-family: MonoLisa;
}
  1. You can change fonts/colours for other parts of GitHub using Custom CSS option