Something comeup after install git-cola
This is an error , i got when i ran git-cola "(python:14634): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", follow this link at #6 (https://bugs.launchpad.net/ubuntu/+source/quickly/+bug/853232) , Peter Würtz (pwuertz) His post will help you get through this problem by this command $ sudo apt-get install gtk2-engines-pixbuf