There is a MyUnity version that can tweak the unity desktop in a visual way like so
My question is where can I download it?
What you see is part of the MyUnity 4.0 development branch, not yet released and not yet usable.
You cannot install it at the moment as far as I know.
The application provides a user-friendly way to adjust, tweak and customize part of the Unity desktop.
MyUnity is available to install in Ubuntu 11.04 and 11.10 using the following PPA to your Software Sources or by running the following two commands via
MyUnity has also recently been accepted into the Ubuntu 12.04 repositories. This will make installation of the application easy as it is available to install direct from the Ubuntu Software Centre in Ubuntu 12.04 – no PPAs needed
Amongst its features are: -