Sorry to bump a closed bug report, but what is the proposed solution? On 17.10, I've enabled the "proposed" through Software & Updates, but "ubuntu-themes" is not a valid package name. Since "ubuntu-artwork" is listed as a binary build from this package, I've updated that to no avail.
Preparing to unpack .../ubuntu-artwork_1%3a16.10+17.10.20171115-0ubuntu1_all.deb ... Unpacking ubuntu-artwork (1:16.10+17.10.20171115-0ubuntu1) over (1:16.10+17.10.20171115-0ubuntu1) ... Setting up ubuntu-artwork (1:16.10+17.10.20171115-0ubuntu1) ... Processing triggers for hicolor-icon-theme (0.17-1) ... But the original error ** "murrine-scrollbar", expected valid string constant ** still exists. -- 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/1723422 Title: /usr/share/themes/Ambiance/gtk-2.0/apps/mate-panel.rc:30: error: invalid string constant "murrine-scrollbar", expected valid string constant Status in ubuntu-themes package in Ubuntu: Fix Released Status in ubuntu-themes source package in Artful: Fix Committed Bug description: [Impact] Get that error now with each random package upgrade: /usr/share/themes/Ambiance/gtk-2.0/apps/mate-panel.rc:30: error: invalid string constant "murrine-scrollbar", expected valid string constant Looks like related to that change: * gtk2: Ambiance, Radiance: inherit style fixes from MATE themes (LP: #961679) -- Marco Trevisan (Treviño) <m...@3v1n0.net> Thu, 12 Oct 2017 05:19:32 +0000 That installation is a default Ubuntu , no Mate installed, and Ambiance is set for 'applications' into tweaks [Test case] 1. Run a gtk2 application (with ambiance/radiance set as theme) in terminal 2. App has to run without any error [Possible regression] Different scrollbars in gtk2 apps. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: light-themes 16.10+17.10.20171012.1-0ubuntu1 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: GNOME Date: Fri Oct 13 14:52:43 2017 EcryptfsInUse: Yes PackageArchitecture: all SourcePackage: ubuntu-themes UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-themes/+bug/1723422/+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