How can I make the background color change when my character steps on a plane? I'm quite new in the blender world and am trying to create a small game. 
I try to make the background color change to a random color each time the character steps on a plane. However, I am having trouble thinking of how to go about doing this. What would be an easy way to do this in the game engine.
You can change the background color via Python controller by calling bge.render.setBackgroundColor()