Answer: there are several themes, so I will give you two answers,
Answer 1-
Family and community.
An example of this would be when the Logan’s plantation is caught on fire from lighting, and the town helps put it out. Another example could be when Cassie’s uncle comes to visit and wants to rest lists against what the white girl did to Cassie, and so does her father.
Answer 2- racism.
This one is much more obvious, but a few examples could be Cassie’s father getting shot, T.J getting attacked by some white boys, Cassie and her brothers walk to school everyday while avoiding a white kid school bus, or T.J and the white police. It is believed the police killed T.J, but the Logan family can’t be sure.
I hope this helped!