She is not. It's a Columbian or Light such and such. By breed this color variety is called ether one. White legs and it's a Light Sussex, yellow legs and single comb Columbian Plymouth Rock, rose comb Columbian Wyandotte and pea comb with feathered feet is Light Brahma. There must be more...
They are virtually the same. The hybrids will lay more eggs, designed for the egg laying industry. The main difference is the commercial hybrids will have a flopped over comb. Look of a Hyline layer. That's the pinnacle of white egg layers. Being a "star" I'd assume it's a sex link making...