FolderSwitcherColor is a recently released tweak for the iOS platform that allows iDevice owners to change the background color of Task Switcher and folders. The tweak works with the help of the Winterboard platform that allows the customization of the background color and the developer has designed some quite interesting backgrounds for users. Basically, after installing the tweak, open Winterboard and there you will see all the colors that you can apply, with the option of choosing what you like.
FolderSwitcherColor is available for free in Cydia's BigBoss repo.
