This bug was fixed in the package gtk+3.0 - 3.18.9-1ubuntu3.1
--------------- gtk+3.0 (3.18.9-1ubuntu3.1) xenial; urgency=medium
* debian/patches/unity-border-radius.patch: - Make sure shadows are drawn for menus on Unity. (lp: #1574693)
-- Andrea <email address hidden> Wed, 27 Apr 2016 11:47:31 +0200
This bug was fixed in the package gtk+3.0 - 3.18.9-1ubuntu3.1
---------------
gtk+3.0 (3.18.9-1ubuntu3.1) xenial; urgency=medium
* debian/ patches/ unity-border- radius. patch:
- Make sure shadows are drawn for menus on Unity.
(lp: #1574693)
-- Andrea <email address hidden> Wed, 27 Apr 2016 11:47:31 +0200