SmartClient PopUp Style Issue

gistfile1.txt

isc.ClassFactory.defineClass('MyPopUp', isc.Window);
isc.MyPopUp.addProperties({
  title: 'Test',
  width: 400,
  height: 400,
  showEdges: true,
  edgeImage: 'https://livebuilds.openbravo.com/erp_pi_pgsql/web/org.openbravo.userinterface.smartclient/openbravo/skins/Default/org.openbravo.client.application/images/popup/border.png',
  customEdges: null,
  edgeSize: 2,
  edgeTop: 27,
  edgeBottom: 2,
  edgeOffsetTop: 2,
  edgeOffsetRight: 2,
  edgeOffsetBottom: 2,
  showHeaderBackground: false,
  showHeaderIcon: true,
  backgroundColor: null,
  border: null,
  styleName: 'OBPopup',
  edgeCenterBackgroundColor: '#FFFFFF',
  bodyColor: '#FFFFFF',
  layoutMargin: 0,
  membersMargin: 0,
  showShadow: false,
  shadowDepth: 5
});

isc.MyPopUp.changeDefaults('headerLabelDefaults', {
  styleName: 'MyPopupHeaderText',
  align: isc.Canvas.CENTER
});

isc.ClassFactory.defineClass('MyWidget', isc.Portlet);
isc.MyWidget.addProperties({
	  headerStyle: 'MyWidgetHeader',
	  bodyStyle: 'MyWidgetBody',
	  bodyColor: '#FFFFFF',
	  showEdges: true,
	  edgeImage: 'https://livebuilds.openbravo.com/erp_pi_pgsql/web/org.openbravo.userinterface.smartclient/openbravo/skins/Default/org.openbravo.client.myob/images/widget/window.png',
	  customEdges: null,
	  edgeSize: 2,
	  edgeTop: 29,
	  edgeBottom: 2,
	  edgeOffsetTop: 2,
	  edgeOffsetRight: 2,
	  edgeOffsetBottom: 2,
	  edgeOffsetLeft: 2
	});

isc.defineClass('SUPTEST_Borders', isc.VLayout).addProperties({
    width: 300,
    layoutMargin:5,
    membersMargin: 10,
    members: [
      isc.Button.create({
        title: "Confirm",
        width: 100,
        click : function () {
            var dialog = isc.MyPopUp.create({});
            dialog.show();
        }
      }),
      isc.MyWidget.create({})
    ]
});