Minor details, the characters, and the setting help the reader determine the central idea of the text. Minor details are little things you notice that may not seem important, but could be <em>foreshadows. </em>The characters are the people in the book. Based off of their personalities, the reader will sometimes be able to determine the central idea. Last but not least, the setting. The setting is the environment the story is mostly in(e.g stormy night, sunset, foggy town).
If the title is "After Hours in Kindergarten" then the theme is about what goes on in a kindergarten's experience while in school. It provides the theme and tells you what you’ll be reading about.
