Could you please take a look at bug #1770278 and look if the screenshot with the artifacts is the same/similar to what you are seeing here?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821768 Title: Java-gtk3 theming has many artefacts after updating to openjdk-11 in bionic-proposed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-themes/+bug/1821768/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
