Very nice! It is a hassle to set all the hud-related color functions in the Function Color Editor (another great app, don't get me wrong). I've gotten decent results that way, but it's slow changing them all. I like the preview option.
It looks like the health bar needs to be adjusted manually. Does anyone know which specific shader / function that is? Also, why is your reticle black in all the photos?
Good job getting Detox to release a useful, unfinished program. I only wish it had been released months ago. Keep working on him for more!