What is the author's tone in Bright and Morning Star by Richard Wright?

The tone has been described as being Colloquialism. The dialog in Wright's "Bright and Morning Star" is written in a colloquial form, emphasizing the pronunciation of words uttered both by a stereotypical Southern person as well as by a stereotypical African American living in the South. Wright uses this form not only to portray the tone of the South but also because he believed in a very realistic documentation of life. If people talked with an accent, muffling words, skipping over consonants, then that is what he would write. Examples of the dialog as written are the words "yuh" for you, "astin" for asking, "ernuff' for enough.