This is a short tutorial on how to change the background color of launch pad in Mac OS Lion 10.7.2. The default background color of Launch Pad is set to blue wave as shown below.
You can change the background pattern by pressing Control + B on the keyboard. This would give a preview of the available background and you can choose the preferred pattern/color. The different background pattern/color available for Launchpad on Mac OS X Lion 10.7.2 are show below.