Your blue shanked pullet is wheaten but lacking whatever it is that makes the Cubes the dark cinnamon wheaten. She will grow up to be a light Marans or Faverolles type of wheaten. I've produced plenty of pullets that looked just like her, at first, I was sure they were silvers, but, they all end up being just regular wheaten, NOT the dark Cuba type wheaten. My guess is the cockerel is similar, but, he will probably look much more like a standard male when fully mature than what the pullet will. The leg color doesn't mean much, it is sex linked, and you will see it far more in females. Also it's recessive, so it hides under the white legs for generations some times. I have seen it the most in the Duckwings, and the whites for whatever reason. I'm a little surprised to see it pop up in birds that seem so different from the Ideal duckwings, those produce blue legs all the time.