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Dimmed high-contrast dark mode

Slightly dims GitHub's dark theme and boosts code contrast so it is easier on the eyes.

Code to copy

[data-color-mode="dark"] body,
[data-dark-theme="dark_dimmed"] body {
  filter: brightness(0.92) contrast(1.06) !important;
}
[data-color-mode="dark"] .blob-code {
  filter: contrast(1.08) !important;
}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.