Gradients don't correctly interpolate missing/none color components correctly
Created attachment 450676 [details] Patch
Created attachment 450693 [details] Patch
Created attachment 450724 [details] Patch
Created attachment 450775 [details] Patch
Created attachment 450788 [details] Patch
Created attachment 450848 [details] Patch
Committed r289122 (246819@main): <https://commits.webkit.org/246819@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 450848 [details].
<rdar://problem/88493224>