Hi my idea is simple.. as many mods for original stalker make nice vignette on screen for improve realism and atmosphere.
Give us that feature this can be good in other way - players wearing helmets, masks, ect. had harder gameplay with itemprofit (armor,resistivity).
I hope this can be good step to future and ammount of time to make this feature is about few hours.
HunabKu - He Who Loves F.t.W.