Make theme color a matter of CSS, not HTML?

[j9t]

The specification covers handling of a theme color through <meta name=theme-color>. As this is purely presentational it looks like something that should be covered by CSS. (Perhaps CSS could offer a pseudo-class like :theme to even handle more theme-related styling aspects.)

Now, the issue may have well been thoroughly considered, in which case I’d appreciate a pointer (I couldn’t find detail on why it’s in the HTML spec). Then, it may require attention and intent for consideration on the CSS side first, before raising it here. Can you comment and advise?

[Kaiido]

Was at least discussed here.

[annevk]

See also #1868 and w3c/csswg-drafts#575. Let's dupe this into the former.

In general I recommend git log grep= when trying to research a particular topic, e.g., git log grep=theme-color. https://github.com/whatwg/html#blame can also be useful.

[myakura]

@j9t

Now, the issue may have well been thoroughly considered, in which case I’d appreciate a pointer (I couldn’t find detail on why it’s in the HTML spec). Then, it may require attention and intent for consideration on the CSS side first, before raising it here.

You might want to check out the blink-dev thread as well, as that is where the feature was originally proposed.
https://groups.google.com/a/chromium.org/g/blink-dev/c/nzRY-h_-_ig