I'm gonna go ahead and disagree about it being "normal"... and call it a quality control issue... and you have light skin instead of mulberry. Though I do agree that it's common, especially in light color patterned birds and project colors such as Paint or Partridge.I have a Paint Silkie about 8 weeks old that has grey/blue colored feet with a yellow/pinkish beak and yellow to orange
I agree that there can be wholes in pigment... but this isn't what that looks like... to me. That would still be the dark skin... but with some lighter areas like white toes or toenails.because they are not straight silkie they have pigment discrepancy.
That's an uneducated (or under educated) breeder with regards to how Paint genetics work.... Paint cross to paint will only give a percentage of Paint. The rest will be either white or black.. is my understanding. And quality will NOT be maintained with regards to spotting.All she has are paints. She said for some reason this year a hatch of paints came out all white.