I disabled the overlay scrollbars with this command: dconf write /com/canonical/desktop/interface/scrollbar-mode "'normal'"
Which solved the problem for me. But I would see it as workaround and hope that someone familiar with the GTK solves the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1167079 Title: some GTK widgets have black backgrounds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-gnome-default-settings/+bug/1167079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs