Public bug reported: Openjdk-11 is now in bionic-proposed, and apparently it has switched to gtk3. The gtk3-java theming in Ambiance theme is very incomplete in Bionic. I can see a lot of theming artefacts in scilab (default look) and jabref (after switching to gtk look&feel) from bionic-proposed.
Steps to compare between java-gtk2 and java-gtk3 theming in Ambiance on Bionic: A. For java-gtk2: 1. Don't update to openjdk-11 in bionic-proposed 2. Install jabref 3.8.2+ds-3 3. Change the look&feel in Preferences to Gtk 4. Notice that the app is properly themed B. For java-gtk3: 5. Install jabref 3.8.2+ds-12~18.04 from bionic-proposed 6. Change the look&feel in Preferences to Gtk 5. Notice that the theming has many artefacts compared to the previous version The same steps can be followed to compare scilab before and after. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: light-themes 16.10+18.04.20181005-0ubuntu1 ProcVersionSignature: Ubuntu 4.18.0-16.17~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-16-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Mar 26 16:17:52 2019 InstallationDate: Installed on 2018-11-29 (116 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) PackageArchitecture: all SourcePackage: ubuntu-themes UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ubuntu-themes (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- 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