At some point, probably from having various adults coloring with her, she figured out to color the shapes. Her is progress from about a month later at 25 months.
Now, I'll admit, I threw some coloring books away already because 1.) they are cheap and 2.) there is no way I can ever store everything she makes...but jump now to this month and you see she is definitely coloring with more of a purpose. (2 years, 4 months)