If you are on desktop and you aren't sure how it works, try out this Wiki page and in the top right corner you can see an "eyeglasses" looking icon. Click that and set it to Automatic or Dark.
Wikipedia is such a beauty and I'm so glad and grateful it exists. Surely it's not perfect, but it's so inspiring and hopeful to see a collective effort be so successful. I sometimes wonder, what new projects we've seen since that are equally inspiring. The Fediverse certainly is beautiful but it's also still a little bit fringe. I personally really like MusicBrainz, but that started 24 years ago What new collective projects has the internet brought us in recent years? And what collective projects could the future bring us?
Dark mode, night mode, light-on-dark design, or whatever you want to call the version of computer content that doesn't feel blindingly bright at night...
Don't wanna be that guy, but these template news-article openings always make my brain hurt. Come on, as if everyone has ever called it anything else than "Dark mode".
A long time coming, but because of their recent changes in the past couple of months if I have JS disabled on Wikipedia I either have an obnoxiously large blank margin on the right, or I get pop-up annoyed by this dark mode announcement with JS enabled and private tab browsing.