The styles `brief.imageStyle` can name. A faceless brief defaults to `auto`, which is not listed here; it picks one of these from the prompt or script, never an `ai_video` one, and `mixed` when nothing asks for a look. `mixed` uses library footage where the scene is filmable and AI images where it is not. `media` says what the B-rolls are made of; the `ai_image` styles other than `realistic` draw every image in one fixed art style. `example`, on the popular styles, is a real video made with the style. `custom` is deprecated and still reads `brief.customStyleText`.