> You should be using the css prefers-color-scheme media query
Problem is, this doesn't always work;
https://forum.manjaro.org/t/google-chrome-not-in-dark-mode/8... https://forum.manjaro.org/t/why-media-query-always-choosing-...
Editing config or .desktop files to work around such issues may be an option for experienced user, but even speaking from such a users perspective, I would much prefer a webpage to offer me a simple button or checkbox.