code: function UMLSeqLifelineView() {
          UMLGeneralNodeView.apply(this, arguments);
          this.movable = Core.MM_HORZ;
  
          /** @member {UMLLinePartView} */
          this.linePart = new UMLLinePartView();
          this.addSubView(this.linePart);
  
          this.fillColor = PreferenceManager.get("uml.lifeline.fillColor", "#ffffff") || PreferenceManager.get("view.fillColor", "#ffffff");
      }
docs: UMLSeqLifelineView
  @constructor
  @extends UMLGeneralNodeView