loginWindow Background and Brightness


Is there an easy way to change the blue boot background to some other color? How about changing the blue background and quantum foam in the loginWindow background?

Also I noticed that when I hit the Pause/Break key on my USB keyboard it activates the cool increase brightness bar, unfortunately I wasn't able to find the "reduce brightness" or any of the sound buttons, any suggestions? Is there a way to map those keys to the standard Fkeys? Thanks Jake