How colonialism impacts identity of Maiguru

Maiguru is Babamukuru's wife and Tambu's aunt. She has a master's degree in philosophy, but her own ambitions have taken a backseat to her role as a wife and mother. Over the course of the novel, she learns to stand up to her husband and supports Tambu when she is accepted to the convent school. I'm not sure how much colonialism fits into her character.