Penguins are dark and white. So are pandas. Elephants are ash, and tigers are orange with dark stripes. Everybody knows this truth be told, for some individuals, it may be the main thing they think about those creatures.
But special cases exist to each standard about the shade of creatures. From time to time, an example gets a change that transforms its entire appearance. The animal may remained as a peculiar aberrance or may even happen to structure an entire new subspecies.