It should be the new default value for offset-position. This value will just use whatever position is default for relevant shapes.
<rdar://problem/113644765>
Pull request: https://github.com/WebKit/WebKit/pull/16815
Committed 267657@main (958cc075a861): <https://commits.webkit.org/267657@main> Reviewed commits have been landed. Closing PR #16815 and removing active labels.