as you saw, i was working on pushing stock ics apps into zvi. if i can get a clean already rooted zvk image (or twrp backup), i can easily make us a fairly AOSP stock image. will need to flash a custom kernel though. currently i was able to do what you did on stock zvi kernel, which is odd since it should have flagged me with a security error (jaeger couldnt get it to flag him either, though i am not sure if he was using the smartassV2 kernel which should have been a no security kernel)... the only modification i have done to mine before i started was a loki recovery. maybe thats enough to stop it? only way to know is to build a custom rom and flash. as for getting it to theme back to holo instead of white, idk about that unless we can modify the systemui.apk as replacing it has given me nothing but a crash. unsurprisingly, it isnt related to lg's security.
I also could use a list of what apps are critical to proper phone function (in the event someone is actually using the phone) so i can wipe out the rest.
For now, if its something i know is garbage, i will toss it. I will also look into rebuilding the systemui and settings to get us back to dark holo