bug#21301: 25.0.50; Emacs Trunk: Fringe bitmaps confuse foreground/background colors.

[Eli Zaretskii]

> Date:  Sat, 22 Aug 2015 16:45:10 -0700
> From:  Keith David Bershatsky <esq@lawlist.com>
> Cc:  21301@debbugs.gnu.org
> 
> I see the opposite -- the bitmap has a red background and the arrow itself is 
> white.  The background of the buffer in this test is the standard white with 
> "emacs -Q".  The test was performed with a fresh build from today.

Then I guess this is a Darwin-specific issue.