Notably to get dark theme friendly styling like Chromium (which uses -internal-light-dark(white, black) for the background). Firefox is planning to use Canvas/CanvasText in https://bugzilla.mozilla.org/show_bug.cgi?id=1761611 This is also the official proposal: https://github.com/whatwg/html/issues/7754
Created attachment 456017 [details] [fast-cq] Patch
Tools/Scripts/svn-apply failed to apply attachment 456017 [details] to trunk. Please resolve the conflicts and upload a new patch.
Committed r292029 (248972@main): <https://commits.webkit.org/248972@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 456017 [details].
<rdar://problem/90977336>
Test gardening for iOS done here: https://bugs.webkit.org/show_bug.cgi?id=238599