ninja Skin background
Design and Skin Customization
P.S. sometimes.... IF you still wind up with a little top square area on each side bar that stubbornly won't change even though the rest of the page looks good with your new color, you have to do this:
Go into your server via FTP and into your active skin folder. Look in there and go into your IMG folder and pull out a copy of the wrapper_bckgrnd.png file. In some photoshop type program, change the tall rectangle to the color you want to match the rest of the page background, and save a copy of it with the same file name. Put the new one into your skin's IMG folder, replacing the old file.
Then clear cache on your site and you should see that area now be the color you wanted. Maybe there's a more elegant way to do this, but that's the crude way I figured out how to fix the little wrapper area in the page background on my own sites.
