, top: 140, width: 400, height: 320, minWidth: 200, minHeight: 110,
    appearanceName: 'yosemite',
    appearanceParam: {
      titleBar: {
        greenButton: 'fullscreen',//'maximize' icon or 'fullscreen' icon
      }
    },
    style: {
      backgroundColor: 'rgba(255,255,255,1.0)',
      overflow: 'hidden'
    },
  }).show();


  document.querySelector('#btn0').addEventListener('click', (e) => {
    frame.control.doCommand('maximize');
  });
  document.querySelector('#btn1').addEventListener('click',