/// <summary>
 /// Register an indicator to the cache.
 /// </summary>
 /// <param name="indicator">The indicator prefab to register. The first time the indicator is
 /// actually used in the scene, the prefab will be instantiated and the
 /// instance will be cached in its place.</param>
 void IInteractionComponent.RegisterIndicator(Indicator indicator) => InteractionComponent.RegisterIndicator(indicator);