[FR] github_document Dark HTML Preview

[amarakon]

I use GitHub on my web browser in dark mode. The default HTML preview is white background and black text, but I would like for a dark theme that matches GitHub's dark theme so the preview will be more accurate. Like this:

output:
  github_document:
    theme: dark

[cderv]

Thanks for the feature request!

We'll consider this in a next release. If anyone wants to help, please submit a PR.

Currently, as a workaround you would need to use html_document() with a dark theme and probably tweak some CSS.