Some of you may be familiar with the Steamworks theme by ICSourcery Theme dev "Alastrionia". Until now it has only been available for ICSourcery. Steamwork is now compatible with JBSourcery! There have been lots of updates and changes to the theme. The theme is now super polished and bettery soft. The theme is very easy to install. You just utilize the JBSourcery toolbox and install the theme there. Steamworks will totally change the look and feel of your device. Elements that have been themed in Steamworks include Framework, SystemUI, Settings, Gmail, Email, Talk, Browser, MMS, Calendar, Phone, Contacts, Apollo, App Widget Picker, Bluetooth, calculator, DeskClock, and of course it comes with new Steamworks wallpapers!
It did take a bit to get this theme on JB since the whole thing had to be tweaked and optimized, but there will be regular updates to the theme that will come out alongside JBSourcery updates. This theme is looking pretty sweet.
More info on this theme here