Very interesting indeed. It does not look unusually pinkish to me (based on this one photo) - it just seems more that the spots are light brown instead of black. It appears to be the leopard equivalent of the golden tabby morph of tiger. I actually read about this (in leopards) being rumored to occur, but I cannot find the source. (I just flipped through the book I thought it was in, but could not find it). Anyway, great link.