Help ID my rat litter

[MrLang]

OK I think I have this somewhat figured out but I'm really not sure. I'm wondering about an ID on the very light colored baby but the others as well.

I bred what I was told was a merle, and she does have some dark spots that are harder to catch in a picture as well as the babies having clearly different types of coats, to my male blue berkshire.

Mom:




Dad, he is a light blue more like the baby in question but not as light by a fair amount:


The babies were 4 dark mottled fur, 4 dark blue, 1 black, and 1 very light mottled blue.

Here are the 4 that look like mom and the 1 I am wondering about


Here are 3 of the 4 types (black one moved to another mom... but it is clearly black...)
Top to bottom, Dark blue regular fur, baby in question light blue, dark blue mottled like mom:



Baby in question, she has more dark patches but the flash torched them... the closed eye shot shows better:



So what I THINK is the case here, and looking for confirmation:

My female is a russian blue (self?) merle het american blue het dumbo

My male is an american blue het russian blue dumbo berkshire

Babies are 4 merle russian blue, 1 merle american blue, 1 miss (black), and 4 russian blue...



Any bold rat aficionados care to confirm or deny?!