Public bug reported: An important factor in staying consistent with the overall aesthetics of the ubuntu design language would be to disable the use of the noise texture on gdm to provide a seamless transition from the plymouth boot splash onto the gdm login. Here is the override provided to fix the inconsistency in ubuntu.css under the gnome-shell themes directory:
#lockDialogGroup { background: #2c001e !important; } ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu4 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Oct 20 22:23:07 2017 DisplayManager: gdm3 InstallationDate: Installed on 2017-10-20 (1 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug artful wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725546 Title: ubuntu.css styling issues - gdm login background inconsistency To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1725546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs