Costume Designer = designer of the costumes of the actors here are just the design. I don't want to supply, or how to dress myself a performer. But supervision, a performer dressed as much as design.
Costume Designer = is the costume designer of the show that is not only designed to provide or how to dress the actors themselves. But to control the dress of a very expressive as designed. The proposition that the director wanted
Costume Designer = is the costume designer of the actor, was designed. You didn't have to supply or dressed actors themselves. But to oversee the dress of the actors came out as designed.