The version could be confirmed. I apologize for my misunderstanding. I was lack of a skill. When I replaced a css file simply, a lock screen didn't change. I'm thinking its cause is here separately.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1715722 Title: Allow safe override of GDM3 theme To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1715722/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs