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Re: [csswg-drafts] [css-color-adjust] Re-add `only` to mean "don't auto-adjust me", per WebKit's behavior (#5089)

From: Simon Fraser via GitHub <sysbot+gh@w3.org>
Date: Fri, 21 May 2021 16:42:39 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-846094673-1621615358-sysbot+gh@w3.org>
Some info on auto-darkening in Apple Mail: the intent is to change the appearance of email content from light to dark, but in a way that preserves some of the authoring intent. It does this by inverting the perceived lightness of CSS colors at paint time, while mostly preserving the color hue. Some CSS colors ("system colors") are not inverted, but use values supplied by the OS which have specific dark-mode values (like the quoted text colors for example). Images are not inverted and their presence may disable auto-darkening, but this could change in future.

This differs from forced colors mode in that some authoring intent is preserved; the user is not in control of the colors.

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Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/5089#issuecomment-846094673 using your GitHub account


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