Ok, after you install Xposed, you have to install Gravity Box (KK). You can download from inside the Xposed Framework under Downloads. Once you have the framework and GB installed, you need to make sure under Modules that GB (KK) is switched on, then reboot. After you reboot, everything will be activated and you can go into the Gravity Box interface and under Status Bar Tweaks > Statusbar colors > You can click to enable and set your colors.
There are lots of other cool tweaks that GB has too. Not all of them are compatible with every set up, so make sure you remember what you are trying to enable, so you can disable if it doesn't work the way you are looking for.
If you want to disable GB, if it does not fit your needs, then you can just uninstall the app and reboot, or just uncheck the box in the Modules section of Xposed in case you want to try it again later.
If that doesn't work, there are some other modules that might, like the Xblast one (also in the Download repo for Xposed).
Need some help, advice, something fixed? Hit me up on Hangouts @ es0tericcha0s
Now offering unlocking services - including many Sprint phone unlocks! PM for details!
HTC Droid Eris / Motorola Droid / Samsung Galaxy S Fascinate / Motorola Droid X / LG G2x / HTC Evo 3D (x2) / Samsung Epic 4G Touch (Sprint S2) / HTC Amaze / Samsung Galaxy S3 (International) / Samsung Galaxy Note 2 / Nexus 4 / HTC One / Samsung Galaxy S4 / Sony Xperia ZL / Nexus 5 / OnePlus One (64 GB)