Hope I'm not jumping...?
Not a bad guess, actually. I forget what exactly salmon genetics are.. silver on wheaten and??? Mensa is silver on probably wheaten plus Co (columbian) and probably some gold melanizer genes.
If melanizers were absent, she would be very white in the white areas.
The Co gene tries to restrict the black pigments to the neck, tail and primaries, but it's not rare for black to show elsewhere on body especially if the bird is not pure for Co.
Salmon does not have Co, that is why salmon roosters aren't solid colored on their bodies and have duckwings. The hens can seem to be but it's because they are wheaten which naturally makes the bodies much lighter on hens plus the silver lightens them up a little bit.
Here is a picture of my salmon turken project boy. The boys are getting there but the girls have been a bit harder for me. This is Sargent with his dad Lenny.