[webkit-dev] Request for position on @font-face descriptors ascent/descent/line-gap-override to override font metrics

Myles C. Maxfield mmaxfield at apple.com
Tue Sep 22 22:37:36 PDT 2020


I’m on record in that csswg-drafts issue as being positive on these descriptors.

Myles

> On Sep 18, 2020, at 12:55 PM, Xiaocheng Hu <xiaochengh at chromium.org> wrote:
> 
> 
> Hi webkit-dev,
> 
> I'd like to request an official position on @font-face descriptors `ascent-override`, `descent-override` and `line-gap-override` for overriding the default font metrics.
> 
> Explainer: https://gist.github.com/xiaochengh/da1fa52648d6184fd8022d7134c168c1
> Spec: https://drafts.csswg.org/css-fonts-4/#font-metrics-override-desc
> Chromestatus: https://www.chromestatus.com/feature/5651198621253632
> 
> Other information:
> 
> These descriptors are newly added into CSS Fonts Level [1], following a recent resolution [2].
> Chromium has already implemented them in M86 behind a flag [3].
> 
> [1] https://github.com/w3c/csswg-drafts/pull/5521
> [2] https://github.com/w3c/csswg-drafts/issues/4792#issuecomment-693528301
> [3] https://chromium-review.googlesource.com/q/hashtag:%22font-metrics-override%22
> 
> Thanks,
> Xiaocheng
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