LitCharts assigns a color and icon to each theme in The Absolutely True Diary of a Part-Time Indian, which you can use to track the themes throughout the work.
Identity, Belonging, and Coming-of-Age
Overlapping Opposites
Racism, Poverty, and Alcoholism
Confessions, Revenge, and Forgiveness
Hope, Dreams, and Loss
Drawing, Writing, and Junior’s Cartoons
Summary
Analysis
After basketball season ends, Junior emails Rowdy an apology for what happened at the game, and Rowdy sends back a promise that Wellpinit will destroy Reardan next time. They exchange what “might just sound like a series of homophobic insults, but … was also a little bit friendly,” which makes Junior happy.
Junior and Rowdy’s battle for vengeance is now basically resolved. Though Rowdy doesn’t explicitly forgive Junior, their back-and-forth exchange—rather than another one-sided attempt from Junior to reach out—restores a kind of balance between them.