At least I can confirm the issue with a KVM install of http://cdimage.ubuntu.com/daily-live/current/bionic-desktop-amd64.iso
Tried virt-manager in there, and see the reported readbility issue. But I installed gnome-tweaks and ALL themes except ambience work juts fine. So the default of Adwaita, good, any as I said all else good. For I'd much more consider it an issue in the latest "Ambience" Theme than virt-manager. It might use a more uncommon thing, but since all others work it should be the theme right? ** Changed in: virt-manager (Ubuntu) Status: New => Confirmed ** Changed in: virt-manager (Ubuntu) Importance: Medium => Low -- 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/1758841 Title: virt-manager: Light grey menu items on light grey background are barely readable Status in Ubuntu theme: New Status in ubuntu-themes package in Ubuntu: New Status in virt-manager package in Ubuntu: Confirmed Bug description: With latest update of ubuntu-theme (16.10+18.04.20180322.3-0ubuntu1) menu items in the toolbar are barely readable (cf screenshot) Background should be dark. virt-manager is the only application I found with this issue so far. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: virt-manager 1:1.5.0-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7 Uname: Linux 4.15.0-12-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Mar 26 09:50:17 2018 InstallationDate: Installed on 2014-07-15 (1349 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520) PackageArchitecture: all SourcePackage: virt-manager UpgradeStatus: Upgraded to bionic on 2018-03-24 (1 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-themes/+bug/1758841/+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