Retained mode is distinct from immediate mode where it _retains_ what is _drawn on the screen_, only redrawing visual components that have changed. Immediate mo

Retained mode is distinct from immediate mode where it _retains_ what is _drawn on the screen_, only redrawing visual components that have changed. Immediate mode redraws the entire application each time, replacing all pixels it's responsible for even if nothing has changed. Throwing away some internal state is not relevant to this distinction.