Scala Pattern Matcher Advanced

advancedmatcher.scala

trait Color
case class Red(saturation: Int)   extends Color
case class Green(saturation: Int) extends Color
case class Blue(saturation: Int)  extends Color

def matcher(arg:Any): String = arg match {
  	case "Chowder" => "Make with clams"
  	case x: Int => "An Int with value " + x
  	case Red(100) => "Red sat 100"
  	case Green(s) => "Green sat " + s
  	case c: Color => "Some Color: " + c
  	case w: Any => "Whatever: " + w
 	case _ => "Default, but Any captures all"
}