The way that shiniori319 offered works. But I had to switch to unity 2d to use "metacity --replace" for seeing the error. After that I changed back to unity then the theme gets back to normal. This makes me recall when the light-themes were first porting to gtk3, the title bar only works when we are using the unity shell, not in gnome shell. In gnome shell, it uses mutter (metacity + clutter) to decorate the windows border.
** Changed in: compiz (Ubuntu) Status: New => Confirmed ** Changed in: compiz (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/878073 Title: Title bar broken on Ambiance To manage notifications about this bug go to: https://bugs.launchpad.net/light-themes/+bug/878073/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs