anchor.diff:        // TODO migrate to dirty method
         // Use the anchor to force the layer color back into center view.
         if (anchoredScene == null) {
  -        print("BackgroundLayer ${tag} : Warning! anchor not set. Background will not be constrained to fill scene.");
  +        //print("BackgroundLayer ${tag} : Warning! anchor not set. Background will not be constrained to fill scene.");
         }
         else {
           t.toIdentity();
  
positive.code:  * remains true.
   * This allows [BackgroundLayer] to act like a backdrop for your game/application.
   */
  class BackgroundLayer extends LayerCascade with MouseInputMixin, KeyboardInputMixin, TouchInputMixin {
    
    // These functions are set according to the Render context type.
    // I wouldn't recommend this in general. It is only done in this
  
negative.code:     super.onExit();
      disableInputs();
    }
    
    void enable(bool enable) {
      if (enable) {
        enableInputs();    
      }
      else {
        disableInputs();
      }
    }
  }
  
  