What is a Manicure Polish Change?

uhh not to be rude but are you an idiot? it is excactly what the name says. you go to get a manicure say a week ago and this week you have to go to dinner and you need a manicure to match your dress but your hands are fine no cuticles or anything since your last manicure was recent. so you go to the salon and ask for a color change, pick out your color and they paint ur nails. i mean c'mon people.