It’s very hard to explain the features of this class! because it seems like a very basic small piece of class! but beleive me, it’s more than a simple background 
with this class, you can create your background effects like loading an external image (even an animated GIF file) and place it on the top left of your stage and then set the “repeat” parameter and your whole stage will be covered with that image! you don’t have to deal with external images always, you can use a simple color as the background and also maybe you wish to use a vista like glassy Aero effect!
Jan 17 2010