To answer your questions: I've just tested with Metacity window manager and the blurry font rendering occurs, just like with gtk-window-decorator. The issue is not present in Marco window manager because it doesn't include the clip_to_rounded_corners() function.
The issue occurs similarly for several MATE themes that I have tested with e.g. TraditionalOK, TraditionalGreen, Ambiant-MATE, BlueMenta etc. metacity-theme-viewer draws a different titlebar than what is specified in the Metacity themes. It doesn't display the titlebar as a themed window would. See the attached images in which the VLC window has a blue titlebar as specified in the TraditionalOK theme while metacity-theme- viewer renders a different titlebar. ** Attachment added: "VLC with TraditionalOK theme titlebar" https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1780468/+attachment/5160765/+files/vlc.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1780468 Title: Blurry titlebar font when window is not maximized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1780468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
