Ubuntu themes

[Gaverick]

In the themes manager there are a few themes which are ok, but not stunning. Could somebody please explain the process of adding more themes to ubuntu?

My desktop manager is Gnome if that helps

 

[Gaverick]

Any sources of good themes you know of?

 

[Gaverick]

thank you people, i'm slowing learning linux, i really like how it works and find it a very good os