Re: [csswg-drafts] [mediaqueries-5] `prefers-contrast: high` media feature doesn't account for macOS and iOS (#2943)

Thanks for the explanation on `forced-colors`.

>  I think it the number of sites that intent to have an enhanced contrast design in the manner of macOS/gmail, and to respond to forced colors, and to have on top of that a very high contrast mode separate from the forced color mode, is likely very small.

I think where sites already have multiple themes, it actually wouldn't be a stretch to imagine them having both an "increased" contrast and a "high" contrast theme[1]. 

That said, I agree that forcing authors to type `@media (prefers-contrast: increase) or (prefers-contrast:high)` is probably best avoided.

Honestly, though, I don't know that they should be matching both in any case. I am not sure either way whether users who prefer AAA-level contrast would prefer to see VS Code style high contrast compared to a baseline experience. I think that is a question we should maybe look into[1].

If it turns out they do, then something along the lines of your last proposal here would work well; otherwise, we can just leave out the last sentence. I would prefer to avoid conflating the ideas of enhanced/AAA contrast and high contrast if we can, but as long as we can carefully document that "high" is shorthand for "increased", I can probably live with it.

[1] with the obvious caveat that sites have no incentive to provide a true high contrast theme, since there is no automatic way for a user to opt in to it without also having forced colours.

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Received on Thursday, 30 July 2020 07:45:14 UTC