I'm glad that you two are confused too!
I did consider pied, since the markings of her wings are 'patchy', but none of the pairs other chicks have ever shown signs of pied... Though I have wondered, since the father and one of the older siblings have eyes with no rings.
The reason why I suggested the suffusion was because it is the only thing I know of that can go with DF spangle to show color. Of course, she may not be DF spangle, as you guys are saying.
I'll post photos of the entire 'family', just to help clear up anything.