Need Info on Ameraucana Leghorn Crosses

Can we see a photo of her?😊
Actually she looks just like a pure ameraucana but she has a more modified comb. She looks like this.
59586BBB-2BF5-44BF-9211-B578C4F27FE2.jpeg
 
:yesss: I spelled it right!

So, is it like the pigments will mix and doing a faded light blue, or is it some crazy genetic thing I'll have a hard time understanding?
I think it’s that the pigments will mix because I have a Leghorn/Orpington cross and her eggs are a very light cream/tan color. Not quite white but not really brown either LOL it’s like they are a combination of the white eggs from the Leghorn and the brown Orpington egg gene. So I think with an Am it should be similar. I believe the white lightens but I’m not entirely sure.
 
First, this combination already exists. It's called the Whiting True Blue.

Second, the white shell gene doesn't combine with the blue to make a lighter colored blue. Each bird carries 2 shell genes for color. There are 2 types, white or blue. The blue gene is dominate so a hen only needs 1 to lay a blue egg. In a first generation cross, all offspring will have 1 white gene from the leghorn and 1 blue gene from the AM. If you cross 2 second generations the offspring will have a 25% chance of 2 whites, 25% chance of 2 blues, and 50% of 1 white and 1 blue.

The brown coating genes are separate. Neither of these breeds carry the genes for brown coating so you won't be getting any green eggs.
 

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