Yes, both genders could have that.
The gene that causes light feet would block the black in all parts of the skin. But the gene that allows dark feet also allows the black (from the Silkie) to show in the skin on the rest of the chick.
I think I understand you.
I've had some experience confusing myself with genetics, too
Ah, yes. That solves it.
Frizzled feathers means frizzled father.
An extra toe on each foot means a father or mother with extra toes. Feathered feet mean a father or mother with feathered feet. So if all hens have clean feet without extra toes, then extra toes and feathered feet mean Silkie father.
If there are multiple roosters in the pen, it is possible for chicks to have different fathers even if they have the same mother. And if the eggs are all in one nest, they may come from one hen, or they may come from several hens. So any two chicks from that clutch might share one parent, two parents, or no parents.