Hey, recently i have been working on a dark mode for the web presence of haiku, many sites, much css to change.
This works with a css media query which you can read about here: https://webkit.org/blog/8840/dark-mode-support-in-webkit/
To test this out you can:
for chromium and safari enable an OS dark mode (i tested this on win10 with chromium, and safari on iOS)
for firefox this might work too, but potentially you need to set ui.systemUsesDarkTheme: 1 in about:config
Unfortunately this is not available for Haiku native currently, we lack a way to indicate that a dark mode is activated, and support for this feature isn’t in out webkit port at the moment.
I have already modified https://www.haiku-os.org/ , feedback welcome.
I still want to modify https://discuss.haiku-os.org/ (this forum, and blog comments on the main site) https://dev.haiku-os.org/ (trac) aswell as https://review.haiku-os.org/
feel free to leave feedback, especially if anything is grossly wrongly colored (like the blog comments currently), illegible or just looks really out of place.