This following branch fixes this issue in Xenial: * lp:~flexiondotorg/ubuntu-themes/ubuntu-themes-gtktoolbutton- lp1641915-xenial 
The attached screen shot illustrates the fix. ** Attachment added: "gtk-toolbutton-clipping-fixed.png" https://bugs.launchpad.net/ubuntu-themes/+bug/1641915/+attachment/4777724/+files/gtk-toolbutton-clipping-fixed.png -- 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/1641915 Title: GtkToolButton styling clips and overlaps Status in Ubuntu theme: In Progress Status in ubuntu-themes package in Ubuntu: In Progress Bug description: GtkToolButton styling clips and overlaps, this can be seen in gnome- disks and the Ubiquity disk partitioner for Ubuntu 16.04.1. See the attached screenshot. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-themes/+bug/1641915/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

