Because gnome-control-center-unity is not allows to select third-party themes. https://bugs.launchpad.net/ubuntu/+source/gnome-control-center-unity/+bug/1100670
Because gnome-control- center- unity is not allows to select third-party themes. /bugs.launchpad .net/ubuntu/ +source/ gnome-control- center- unity/+ bug/1100670
https:/