UI Readme Dark Mode

[onosendi]

I have the UI set to light mode, but the readme is still dark mode.

[juanpicado]

It is a known issue no solution yet , the issue is with the package github-markdown-css, the UI uses the light theme by default, so the switch to dark mode is not done automatically, we need some logic to switch CSS from that library, more info here sindresorhus/github-markdown-css#104 for possible solutions

[juanpicado]

#4071