answered, but I'll expand my answer. The color means nothing if she is otherwise healthy.
It can reflect what she is eating, it can also be green from iron and vitamin supplements. When to see a doctor? If she has Un-expected weight loss, Indigestion, Diarrhea,Foul-smelling stools, Burning sensation in the
rectum,Gas/flatulence, Mucous in stool. If she is otherwise healthy, growing, its ok.
Would you like to video or text chat with me?