Mythos can have any park wear worn. Tchoup chop (and I would assume Emerils) has a no sleeveless shirt code for men, any other casual is fine, including shorts and tshirts. I can't answer Lombards or Delfinos as I have never been. Most people like to dress up just a little for Tchoup chop, but people wear everything from dress clothes and dresses to shorts and tshirts there.