I have the same issue since a while now, installing 'gtk2-engines- pixbuf' does solve the "problem" of the error lines, but it doesn't fix the theme problem.
For instance, when running a Java app, that uses JInternalFrames (sorry if this is the only example I have but I see it every day), if 'gtk2 -engines-pixbuf' is not installed then the inner frames are drawn in the old GTK way (which looks pretty awful when combined with the ambiance theme https://launchpadlibrarian.net/94538299/newimage.png), but, if 'gtk2-engines-pixbuf' is installed it shows a badly drawn frame border as you can see here https://launchpadlibrarian.net/83306890/windowbug.png in Bug #878937 I'm not actually know if that is the old GTK way, but I do remember having a similar theme some 7 years ago... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/762167 Title: missing dependency on gtk2-engines-pixbuf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-themes/+bug/762167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs