Hello. The shimmer-themes metapackage depends on greybird-gtk-theme and numix- gtk-theme so that they are pulled at the same time. If you remove that package, there is no longer anything that depends on numix-gtk-theme so it would also be removed with autoremove.
As thad-fisch indicated, using one of those two commands (marking as manual, installing while installed) will mark it as manually installed. This is a preferred solution when manually removing metapackages: sudo apt-mark manual numix-gtk-theme sudo apt-get install numix-gtk-theme "I don't call that a simple solution for end users." Packages are only auto-removed when using the commandline utilities, specifically with "apt-get autoremove". If you're using these commands, it is unlikely that you're a beginner user. Since you're in the terminal, if numix-gtk-theme is removed, simply install it back and it will be marked as manually installed. Marking this one as invalid, the metapackage is working as expected. ** Changed in: shimmer-themes (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1450148 Title: In Vivid shimmer-themes misses reverse depend on numix-gtk-theme To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shimmer-themes/+bug/1450148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs