Final answer:
The theme developing in 'Oreo' is primarily focused on family dynamics, as the story investigates the complexities of family relationships, identity, and acceptance.
Step-by-step explanation:
The theme that is developing in the book Oreo so far focuses primarily on family dynamics. The narrative explores various aspects of family relationships and how they shape the characters, touching on issues of identity, heritage, and the complexities of mixed-race families. It often delves into the nuanced interactions between family members, addressing factors such as belonging, acceptance, and legitimacy within the familial structure. These elements are interwoven with the protagonist's journey, making family dynamics a central theme of the story.