code: function UMLPackageView() {
          UMLGeneralNodeView.apply(this, arguments);
          this.containerChangeable = true;
          this.fillColor = PreferenceManager.get("uml.package.fillColor", "#ffffff") || PreferenceManager.get("view.fillColor", "#ffffff");
      }
docs: UMLPackageView
  @constructor
  @extends UMLGeneralNodeView