Also, Rich and Rich, TCR shows the Light Pink version as having concentric circles on the coin inlay, and the Dark Pink version as having a smooth finish. In fact, in Rich A's scan, that difference is evident.

I don't know whether the light/concentric and dark/smooth combinations are consistent, but if they are, it's probably just another instance of a variation in production runs that we see so often, but with more signigicant differences than usual.