As I can see on lemmyverse.net/communities, no there is not. You can make one if you know how to manage it, I like the idea

Thanks Sami, it was a cache issue, I’ve updated the post with more details

I’ll try that, hope it works, thank you

I tried putting all the css files, but nothing works. Should I put them together in one file? Or is each file a single theme?

I set the LEMMY_UI_EXTRA_THEMES_FOLDER environment variable to /app/extra_themes then volume my extra_theme to it, which is

# ...
volumes:
      - ./lemmy-ui/extra_themes:/app/extra_themes
# ...

Is this right?