'Simple' is always relative to requirements. Otherwise, you'd just be sending 80-col ASCII textfiles down the wire (or something even simpler than that, like no

'Simple' is always relative to requirements. Otherwise, you'd just be sending 80-col ASCII textfiles down the wire (or something even simpler than that, like nothing at all). Is dark-mode a good requirement? I'm not sure. It's nice to have, and our dark-mode does look great on a recent smartphone in the dark - but if I had known just how hard a good dark-mode would be, and how many of the issues we would struggle with (issues which OP runs headlong into), I think we would've skipped it. There's a lot of other things that time & energy could go into. For most websites, I would say that they have far too many problems to spend time on dark-mode, no matter how trendy dark-mode is. (Users who really want dark-mode can install one of many extensions/plugins/apps/screen-inversion tools. They work reasonably well, and usually avoid issues like the white-flash FOUC.)