Function setLayers(layers: string[], defaultLayer: string): void Define the layer names. Should be called before any objects are made. param layers - The layer names.param defaultLayer - The default layer name. layers(["bg", "obj", "ui"], "obj") // no layer specified, will be added to "obj" add([ sprite("bean"), ]); // add to "bg" layer add([ sprite("bg"), layer("bg"), ]); since v3001.10group Layers