> Date: Sat, 23 Sep 2017 15:21:53 +0200
> From: martin rudalics <rudalics@gmx.at>
>
>  > I've now pushed the remaining changes as well,
>
> Thanks.  At least for the background color fix your decision to push to
> master was probably right.  But we really should consider backporting
> your changes to the release branch if after a few weeks no problems
> arise.

Actually, the fix should have been pushed to the release branch to
begin with, since this bug is on the list of Emacs 26.1 release
blockers.