In, iOS 6, Apple has made changes to the status bar coloration. But the jailbreak community have already made a tweak for that.

StatusTint is a free tweak off the ModMyI repo and not only does it allow you to change the color of the status bar, but it also allows you to have multiple colorations with 2 colors. So if it is a mixture of black and white, blue and black, red and gold, or just any combination, StatusTint can do it all.

*kudos JBN