Yeah. It's fine in 16.04 and broken in 18.04. Not quite sure when it broke.
** Summary changed: - Tabs in Settings of Thunderbird not visible + [regression] Tabs in Settings of Thunderbird not visible ** Changed in: thunderbird (Ubuntu) Importance: Undecided => Medium ** Changed in: ubuntu-themes (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1754692 Title: [regression] Tabs in Settings of Thunderbird not visible Status in thunderbird package in Ubuntu: Confirmed Status in ubuntu-themes package in Ubuntu: Confirmed Bug description: I am on Ubuntu 18.04 Bionic right now and noticed a little theme missbehavior. (i think) >> Open 'Thunderbird'...go into 'Settings'...go to 'Security' (for example) There the Tabs below (Junk, Password, ...) are not visible. There is just text with no background (see screenhot) Sidenote: The same i noticed on Xubuntu with greybird-theme. But with other themes (numix, arc) they are visible. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: light-themes 16.10+18.04.20180122.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CasperVersion: 1.389 CurrentDesktop: ubuntu:GNOME Date: Fri Mar 9 15:26:35 2018 LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180308) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash 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/thunderbird/+bug/1754692/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp