anchor.diff:    bool get visible;
     set visible(bool value);
     
  +  bool get disableRemoveComponents;
  +  set disableRemoveComponents(bool value);
  +  
     bool get useMatrixTransformations;
     set useMatrixTransformations(bool value);
     
  
positive.code:   }
  
    void removeAll() {
      int i = _childWrappers.length;
      
      while (i > 0) removeComponent(_childWrappers[--i]);
  
negative.code:   }
  
    void removeComponent(IUIWrapper element, {bool flush: true}) {
      if (_disableRemoveComponents) return;
      
      if (
          (_control != null) &&
          (element != null) &&
  