Im using on of these scripts right now on the gingersnap rom... i juss flashed it after i flashed the rom... it works
http://forum.xda-developers.com/showthread.php?t=1716124
Re: [ROM]-GingerSnap 1.3.5|7-23-12|Stock LG UI! Small Update!
You should sync this with the latest mirage.. i like this rom but im missing a few things.... and can you kill the app by holding the bacc button ? Where is the setting ?