Remember when UIs were customisable to the point that you could choose any colour for all the elements? Now it's "you can have any colour you want, as long as it's light or dark", and all of a sudden "dark mode" is heralded as something revolutionary and new. CSS3 even deprecated the "system colors" feature that was meant to allow the same degree of UI customisation we had before for websites too. It's nothing but a…
Specific system color keywords were deprecated but the idea of system color keywords was not. They're essential for when `forced-colors` is active.
https://developer.mozilla.org/en-US/docs/Web/CSS/system-colo...