Don't forget:
* Added dark mode
* Added dark mode
That's kind of my whole point. Dark mode features are a symptom of UIs that no longer communicate anything significant with color and shade so just changing color with CSS tweaks doesn't break them.
Though you seem to be suggesting that's somehow a bad thing and I'm not sure why. Dark mode is so popular that operating systems have even started supporting a native toggle.
New GitHub looks alright on low resolutions, but looks kinda awful on big screens. This is the opposite problem old GitHub had.
Next thing I know, books will printed white-on-black.