Do you wish to have a real customized Social Engine Theme you may be faced with issues if you wish to change the color of your blocks you have on your site.
There is an easy way to fix this problem.
There is a code within the constants.css under “WIDGET BOX BORDER COLORS.”
There you’ll find “theme_foreground_background_color.”
That’s what changes the full background of the widgets – not just the border like the header indicates.
Hope this helps any of you out that wish to be creative and customize your own SE.