There’s no much to tweak under the current version of Unity-2D, however, there are certain times when you want to set the Launcher to be hidden or vice versa, or you just don’t get used to it’s “Dodge” default mode. And Compositing Manager makes it look better (Near regular Unity).
Install unity 2d desktop settings on ubuntu 11.04 (Natty)
Download deb packages from here once you downloaded double click on that to install.
Credit goes here