I think the issue is that the applications you mention run as root. We should set root's qt4 theme to oxygen. Can you confirm that qt4 only applications that run as your user, such as speedcrunch work correctly, while ones running as root, such as software sources, have the wrong theme.
** Changed in: kubuntu-default-settings (Ubuntu) Status: Triaged => Incomplete -- Kubuntu's Qt4-apps do not have the style of KDE4 https://bugs.launchpad.net/bugs/207817 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs