Can I give my dot net application form having multiple colored like a shading..?

In my project I need to give some graphical effects for my forms just change its back color, I already given a back ground image for my MDI form so I have to give some matching colors to all my forms in it, I consider to give like a shading of mixed colors, just like how the Gradient tool in photoshop does.

Is there any solutions to do this please help me, or otherwise tell me a better option to make my forms graphically better and cool.

Thanks in advance..