Without root access (or being worried of an update overwriting the changes), this is how I could fix it as a user.
I've placed this in my ~/.config/gtk-3.0/gtk.css file: window.desktopwindow.background:backdrop { box-shadow: none; } Don't ask why it's gtk-3.0 and not 3.20 or 4.0, I have no clue. The "window.desktopwindow" selector is something I've found in gnome- shell-extension-desktop-icons-ng's source. It's a more specific selector than the one in the theme, hence takes precedence over that. Without this selector they would be of the same precedence, and for some reason the one in the theme is used, the one in the user's config is ignored. And GTK doesn't seem to support "!important". This extra selector luckily gives some confidence that the rule probably doesn't have an effect on others. (However, the disclaimer from my previous comment still applies.) In extension-manager toggle the said extension back and forth to apply the change. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-themes in Ubuntu. https://bugs.launchpad.net/bugs/1986450 Title: Visual artifact 1px vertical white line right side of the wallpaper Status in gnome-shell package in Ubuntu: New Status in gnome-shell-extension-desktop-icons-ng package in Ubuntu: New Status in ubuntu-themes package in Ubuntu: New Bug description: After manually upgrading from 20.04 LTS to 22.04.1 LTS I find that there is a 1px wide vertical white line on the desktop that appears whenever an application has focus. It is on the right side of the monitor, covering the background wallpaper but not the menu. Workaround: in Displays, change scale to something else than 100% and then change back to 100%. That white vertical line will stay at the former 100% window size location until the Settings window is closed. It disappears when the Settings is closed. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 22.04 InstallationDate: Installed on 2018-04-27 (1570 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Package: gnome-shell 42.2-0ubuntu0.2 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.15.0-46.49-generic 5.15.39 RelatedPackageVersions: mutter-common 42.2-0ubuntu1 Tags: wayland-session jammy Uname: Linux 5.15.0-46-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo www-data _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1986450/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp