Adds CSSCustomState to schema
Fixes #113
See https://wicg.github.io/custom-state-pseudo-class/#exposing for the WICG proposal.
See https://github.com/whatwg/html/pull/8467 for HTML PR and https://github.com/w3c/csswg-drafts/pull/8213 for CSS PR (not a direct match for the WICG proposal)
While this is currently only supported in Chromium (in a form that doesn't match the latest spec) there's an effort to get this cross browser. See https://groups.google.com/a/mozilla.org/g/dev-platform/c/vDVxI6O3YqU for a Firefox I2P.
There's also interest within OpenUI to use this schema for our anatomies which would make use of this too.
Can someone review this PR?
This looks fine to me 👍 Konnor was already working on a PR to add this to @custom-elements-manifest/analyzer
@justinfagnani can you also take a look? Seems like a quick win :)
love to see the power of the opensource community at work !
@lukewarlow the scheme needs to be regenerated
That's done now sorry
@justinfagnani is there anything else you need me to change?