I installed LibreOffice 5.2 from the libreoffice/ppa PPA, and that seems to fix the bug. However, I obviously can't tell whether the bug is fixed in Ubuntu proper, unless the packages from the PPA are adopted precisely as-is!
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1634490 Title: Pattern drawn over dialog title bars obscures title Status in libreoffice package in Ubuntu: New Bug description: Most dialogs in LibreOffice (but not the main document windows) have a pattern drawn over the title bar, which obscures the window title. I can't find any way to change this: changing the symbol style has no effect, and I can't find anything about this problem by googling. I attach a screenshot of the Format dialog from Calc to show the problem. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: libreoffice 1:5.1.4-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19 Uname: Linux 4.4.0-38-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: GNOME Date: Tue Oct 18 13:38:16 2016 InstallationDate: Installed on 2014-11-26 (692 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: libreoffice UpgradeStatus: Upgraded to xenial on 2016-07-25 (84 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1634490/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp