Windows 7: Change image background for start menu ?

I want to change background for start menu, with white background is bored. But when i open aero.msstyles>>image, it have too many file and i don't know what file is background image of start menu. Anyone can tell me how to change that ? Thanks in advanced!

I think you'll need a third party application in order to change the white background.

Try this the numbers are for 7600 v.
http://www.sevenforums.com/customiza...or-change.html

Thanks you very much but so is it the size of image must be the same with original image ? and how do i need to do to replace white color with an image ? If follow that image you posted we have 4 image to make with start menu ?

Well just make a backup of images first if you wanna resize it.