after installing Slimbean 2.1 i realized that the deafault launcher is Apex , and not aosp launcher (which i prefer over any other launcher) its more smooth and doesn't have all the shuttering and tearing like apex , nova , etc ...
so after some searching i found this thread on nexus 4 themes and apps ====> http://forum.xda-developers.com/show....php?t=2403231 (all credits goes to the original thread)
How to install :
1. download the "launcher2.apk"
2. install it as normal apk
* tested on slimbean 4.3 and works great.
please test it and report back if it works for you
PLEASE PRESS THANKS BUTTON IF I HELPED YOU
Download Link =====> https://www.dropbox.com/s/npcjonnaat190yo/Launcher2.apk