How does walker reveal Dee's character by describing her clothing?

By describing Dee’s clothing, Walker highlights the fact that Dee is a person who likes to be stylish. This is indicated by how she wants different attires to match the changing times and to be at par with the current fashion. She has a style statement of her own.

For instance, she wants a yellow organdy dress to wear to high school on her graduation day. Similarly, she is interested in owning a pair of black pumps to go with a green suit that she had designed on her own.