After https://webkit.org/b/176635, Layers sidebar footer should no longer have a white background.
Created attachment 324186 [details] Patch
Created attachment 324187 [details] [Image] Proposed change
Comment on attachment 324186 [details] Patch r=me
Comment on attachment 324186 [details] Patch Clearing flags on attachment: 324186 Committed r223646: <https://trac.webkit.org/changeset/223646>
All reviewed patches have been landed. Closing bug.
<rdar://problem/35065691>