Re: [csswg-drafts] [css-fonts-4][css-fonts-5] Add "font-synthesis: super" (#7441)

Just FTR, I noticed when re-reading the [spec for `font-variant-position`](https://drafts.csswg.org/css-fonts-4/#font-variant-position-prop) that there is already text that requires:

> In the case of OpenType fonts that lack subscript or superscript glyphs for a given character, user agents _must_ synthesize appropriate subscript and superscript glyphs.

which means the existing implementations that don't synthesis are actually non-compliant.

(In Gecko bug https://bugzilla.mozilla.org/show_bug.cgi?id=1849010, I'm currently implementing `font-synthesis-position`, and as part of adding tests for that, I'll include a test to verify that UAs do synthesis when required.)

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Received on Thursday, 17 August 2023 11:22:44 UTC