I am using AK stable kernel (There are a few to try out). And trickster to change the color settings. Let us know how it went.nfl46, do you mind pointing me to the kernel you're using? I tried searching on XDA for 'Franco kernel' but had no luck. Maybe I missed it..? Anyway, I would greatly appreciate it if you could help me out. Thank you.
EDIT: Never mind, I believe I found it http://forum.xda-developers.com/oneplus-one/orig-development/kernel-franco-kernel-r1-t2800871
EDIT#2: nfl, how can I edit RGB values in Franco?
EDIT#3: Never mind, once again; I found TricksterMod app and lets me mess with the RGB settings.
Try 235, 245, 255. I primarily use that and 0, 0.3, 0.2, -20 in settings (custom screen color). I always change it though. But, that's what I have now.