This sounds like a coincidence as I don't think the theme can directly cause screen tearing.
Please run this command to send us more information about the affected machine: apport-collect 1845102 ** Package changed: yaru-theme (Ubuntu) => mutter (Ubuntu) ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845102 Title: Video tearing in Celluloid with new Yaru theme To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1845102/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs