The layer component.

layerIndex(): number | null

Get the index of the current layer the object is assigned to.

returnsThe index of the layer the object is assigned to, or `null` if the layer does not exist.

layer(): string | null

Get the name of the current layer the object is assigned to.

returnsThe name of the layer the object is assigned to.

Set the name of the layer the object should be assigned to.