Support for Github2 dark theme

[DeeGeeMan]

It would be nice if the Github dark theme was also supported in the rendering CSS option.

[hraftery]

If you're willing, you can add it yourself. This method is working well for me, but I only added the light theme:

https://twitter.com/HeathRaftery/status/1517372992757518336

The light theme result is here: https://gist.github.com/hraftery/e8afa1a55848b2a626295007ea78f59b

Twitter

Gist

CSS derived from sindresorhus/github-markdown-css to suit MacDown. Instructions (you can skip steps 1 to 3!): https://twitter.com/HeathRaftery/status/1517372992757518336

CSS derived from sindresorhus/github-markdown-css to suit MacDown. Instructions (you can skip steps 1 to 3!): https://twitter.com/HeathRaftery/status/1517372992757518336 - github-markdown-light.css

[hraftery]

Oh, I already documented this in #1300 too. Forgot about that.