What colors can Roof Rats (Rattus rattus) have?

In the wild, most Roof Rats are agouti colored, like Roofy:

However Blondie is a blonde colored roof rat: the only rattus rattus with that color that we have ever seen!  All of her babies with Bobcat are agouti, but we expect the next generation to also have some blonde babies.

But we bred some with light or white facial markings:

Domesticated Rattus Rattus with facial markings

Then white tipped tails:

And now we have bred all black and even pale gray roof rats!

Snowflake is simply beautiful and such a sweetie!  We are so proud of her.