We need to integrate counter-styles with RenderListMarker so we can render the markers according to the at-rules.
Pull request: https://github.com/WebKit/WebKit/pull/10871
Pull request: https://github.com/WebKit/WebKit/pull/10907
Committed 261135@main (2e241f9b533b): <https://commits.webkit.org/261135@main> Reviewed commits have been landed. Closing PR #10871 and removing active labels.