ResolvedBackgroundRenderer

type ResolvedBackgroundRenderer =
  | BackgroundRendererEntry["renderer"]
  | typeof CSS_BACKGROUND_RENDERER_ID;

Defined in: packages/react-full/src/states/configAtoms.ts:373

resolveBackgroundRenderer 的结果：可以直接使用的渲染器类，或 CSS_BACKGROUND_RENDERER_ID 表示不需要加载背景渲染器