Created attachment 814044 [details] regressed look With dark background themes, the location bar, search bar and Search button now lack their light background. If browsing a secure site, the location bar shows a light yellow background, but otherwise it's transparent like the other two. This is bad for UX since the missing background color leads to bad contrast, making text very hard to read. Attached an image how it looks now on trunk.
Also affected: * MailNews Search Bar * inactive tabs (browser, MailNews) show up black [maybe only with Aero or hw accel?] The issue is not present on current Aurora (2.23a2) builds, only trunk (2.24a1).
This first regressed between 2013-09-20 and 2013-09-21. Hence I guess it is fallout from bug 907926 (m-c cset e844f4ed3e1f). [Didn't bother to try and hunt down the second regression window.] I can see (reproduce) the issue all the time in my Win7 x64 VM (running inside VMWare Workstation 9.0.1 with HW accel enabled) but not at home with native Win7 x64. With Firefox trunk nightlies however I cannot reproduce any similar issue on either machine.
Meanwhile the problem has disappeared: last broken: 2013-12-08 (2.25a1) first good: 2013-12-11 (2.26a1) Unfortunately there are no nightly builds available in between and I was unable to identify the bug/changeset that fixed the issue. Current Aurora builds are OK as well. Once SM 2.24b1 becomes available I'll check again with that and if the issue is not present there either, I'll close this bug.
Appears fixed with SM 2.24b1.