[webcomponents] Is there a custom pseudo-elements proposal or spec anywhere? (#298)

I've looked through this repo as well as in the public-webapps mailing list, but I've not seen any formal proposal for custom pseudo-elements as a way to style 3rd-party web components.

Does one exists?

I've seen the idea mentioned by a number of people in blog posts, conference talk slides, f2f summaries, etc. but I can't tell if there's actual movement on it or not.

If nothing of this sort exists, I'd be happy to submit a proposal or outline the case for why they're necessary and why custom properties (though also necessary) are not sufficiently able to meet all reasonable 3rd-party component styling use cases.


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Reply to this email directly or view it on GitHub:
https://github.com/w3c/webcomponents/issues/298