No longer respects xfconf's xsettings/Gtk/ColorScheme property

[Trent McPheron]

I don't know what underlying mechanics are targeted by xfconf's xsettings/Gtk/ColorScheme property, but GTK 3 applications no longer care about it. In 13.04, I used to be able to change the colors of both GTK 2 and GTK 3 themes all with just that property, but now only GTK 2 applications respect that property.

To reproduce:
On an XFCE system like Xubuntu, use xfce4-settings-editor to edit the Gtk/ColorScheme property in the xsettings channel. Set it to something like "bg_color:#ffffff;" (or any background color not used by your theme that you will easily notice is different). Notice immediately that the background color of your GTK 2 windows have changed. Now, open any GTK 3 application like file-roller, gcalctool, or update-manager.

Expected Result:
The background color of the GTK 3 window has changed, and thus GTK 3 applications match GTK 2 applications.

What Happens Instead:
The ColorScheme property is ignored and the applications don't match.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: libgtk-3-0 3.8.4-0ubuntu3
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Sun Oct 20 01:02:13 2013
InstallationDate: Installed on 2013-10-20 (0 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
MarkForUpload: True
SourcePackage: gtk+3.0
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.