This bug was fixed in the package ubuntu-mono - 0.0.39
--------------- ubuntu-mono (0.0.39) precise; urgency=low
* Add icons for gnome-control-center category headers (LP: #921061) -- Aurelien Gateau <email address hidden> Tue, 24 Jan 2012 17:34:16 +0100
This bug was fixed in the package ubuntu-mono - 0.0.39
---------------
ubuntu-mono (0.0.39) precise; urgency=low
* Add icons for gnome-control- center category headers (LP: #921061)
-- Aurelien Gateau <email address hidden> Tue, 24 Jan 2012 17:34:16 +0100