Why is Hasbro showing this Vader in four different color configurations? God help us all.
I think a lot of folks missed the note at Toy Fair that this figure would be randomly assembled so there are thousands of combinations possible. At a minimum, assuming there are only six colors (blue, yellow, green, purple, red, orange) and 7 parts (head, lightsaber, r arm, l arm, r leg, l leg, torso) that's around 46,656 combinations.
Adam Pawlus said on his twitter that Hasbro's only rule was matching colors can't be on parts next to each other, so the number is less than 46k but still a damn ton of possible configurations.