<div dir="ltr"><div>Hi webkit-dev,</div><div><br></div>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.<br><br>Explainer: <a href="https://gist.github.com/xiaochengh/da1fa52648d6184fd8022d7134c168c1">https://gist.github.com/xiaochengh/da1fa52648d6184fd8022d7134c168c1</a><div>Spec: <a href="https://drafts.csswg.org/css-fonts-4/#font-metrics-override-desc">https://drafts.csswg.org/css-fonts-4/#font-metrics-override-desc</a><br>Chromestatus: <a href="https://www.chromestatus.com/feature/5651198621253632">https://www.chromestatus.com/feature/5651198621253632</a><br><br>Other information:<br><br>These descriptors are newly added into CSS Fonts Level [1], following a recent resolution [2].</div><div>Chromium has already implemented them in M86 behind a flag [3].</div><div><br></div><div>[1] <a href="https://github.com/w3c/csswg-drafts/pull/5521">https://github.com/w3c/csswg-drafts/pull/5521</a></div><div>[2] <a href="https://github.com/w3c/csswg-drafts/issues/4792#issuecomment-693528301">https://github.com/w3c/csswg-drafts/issues/4792#issuecomment-693528301</a></div><div>[3] <a href="https://chromium-review.googlesource.com/q/hashtag:%22font-metrics-override%22">https://chromium-review.googlesource.com/q/hashtag:%22font-metrics-override%22</a></div><div><br></div><div>Thanks,<br></div><div>Xiaocheng</div></div>