On Android, Vivaldi supports dark more out of the box. It's actually just a toggle for the dark mode present on any chromium-based browser, and you can enable it globally in any of them in chrome://flags/#enable-force-dark
Dark Reader, often recommended, is very slow, especially on old hardware. This built-in mode is much more efficient and works well on vast majority of pages.
Dark Reader's slowness primarily stems from its auto-detection of pages that need darkening. If you turn that off and manually enable it on pages that need it, it doesn't feel any slower than anything else
I set this up a while back and am struggling to find the original author. Future readers: note I did not create this theme but discovered it from a fellow HN netizen.
If you're on one of the betas for about-to-be-released apple OS’s, there's a new describe an extension functionality and building a dark mode for HN is exactly what I just used it to do. Super easy, and synced across all my devices.
I know this sounds like an ad, but I was pretty impressed with it
I used "Override colors" under Settings -> Accessibility to set nice dark colors.
Then I used userChrome.js from https://github.com/AlexVallat/firefox-scripts/ to add a button which toggles the browser preferences "browser.display.use_system_colors" and "browser.display.document_color_use", so I can still access bright mode if needed.
The suggestion has been brought up and dang has commented on it over the years. He doesn't seem opposed to it per se. It's possible your descendants may live to see dark-mode HN:
Coincidentally, the midnight theme was created specifically for the reason you asked this question: for using HN while lying down next to a toddler/partner. It has a reduced white point because most dark modes are too bright to use in bed near others. Def not a great daytime dark theme though – that's what the others are for :)
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