Answer:
Ms.Colvin did not become a majot face of the civil rights movement because she was a dark skinned woman.
Step-by-step explanation:
Colorism is oppression based on skin tone, placing light skin on a pedestal and oppressing those with darker skin. Colorism disproportionately affects black women in the US. Rosa Parks was a light skinned black woman, so she was seen as a better representative of the movement in terms of palatability and acceptance from the masses.