DING developer's response is basically that they clear the "decorated" property of the window, and the theme should handle that.
Based on this, I think the correct solution for the Ambiance/Radiance themes is to further restrict the offending block with the ".decorated" selector, i.e. .background.decorated:backdrop { color: @backdrop_fg_color; box-shadow: inset -1px 0 shade (@bg_color, 0.94); } or for the user's own gtk.css to select for its negated ":not(.decorated)" for the workaround: .background:not(.decorated):backdrop { box-shadow: none; } -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1986450 Title: Visual artifact 1px vertical white line right side of the wallpaper with Ambiance/Radiance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1986450/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs