And installation is a breeze. There's nothing to configure in command line; it's all drag and drop.
Here's how:
1) Download the theme that you want to use from the GNOME Art library.
2) Open the
Login Window
manager. That's System->Administration->Login Window
. You'll be prompted for the administrative password.3) Click on the
Local
tab.
4) Drag-and-drop the newly downloaded theme package into the themes selection box.
And that's it!