I'm still learning what all the colours are . Is the silver the colour in her wings and tail ? Or in her chest /head ( wings looks silver to me but sometimes names are different)
The short simple explanation is that all chickens are silver based or gold based or cockerels can carry one of each gene silver/gold.
Basically gold based chickens have the gold/red/buff/ etc. colors.
Silver based chickens do not carry those colors. Mostly black or black and white.
Silver in some cases can have red. If you look at D5s shoulders you can see some dark red silver roosters can have that. Also some silver pullets can have salmon colored breasts.
Silver/gold isn't per say colors its what allows or doesn't allow gold/red/buff colors.
Its sex linked meaning males have spots for two genes. One from each parent.
Felmales only have one spot. They only get one gene either silver or gold. They get their copy from their fathers and pass it on to their sons only.
Cockerels can have one silver gene and one gold gene. Silver is dominate to gold so when they have both in theory the silver should hide the gold and they should appear silver.
I don't find it the case. They do hatch out silver but after you've hatch enough of them you can see telltale signs in some. As they age they get a yellows color in areas that would be gold in a gold and white in a silver.
See D5s hackles he has a yellows tint. I believe that shows he is silver/gold.
The whole silver/gold and its sex linkage is what red sex links use.
Breed a gold based rooster to a silver based hen. Pullets get gold from father and are gold.
Cockerels get gold from father and silver from mother. Silver is dominate so at hatch they have a silver color/pattern opposed to the gold color/pattern of the pullets so they can be sexed by color at hatch.
There's more to it then just that but that's a quick run through.