Originally Posted by Rampardos_Fan
Groudon and Kyogre represent land and sea, as well as sun an rain so it could be both. Those two are part of the 'weather trio' (with Rayquaza), so maybe the representation changes when they're part of a trio. Of course, Kyuremu could be the middle ground, a 'grey area' too.
any way, if it were up to me, i would be fine with just black and white. Coincidence, im playng white now.