Shape not working about echarts-wordcloud HOT 1 CLOSED

const option = {
  backgroundColor: '#fff',
  tooltip: {
    show: false,
  },
  series: [
    {
      type: 'wordCloud',
      gridSize: 5,
      sizeRange: [12, 22],
      shape:'star',

      // rotationRange: [-45, 0, 45, 90],
      maskImage: false,
      textStyle: {
        normal: {
          color: function () {
            return (
                'rgb(' +
                [
                  Math.round(Math.random() * 160),
                  Math.round(Math.random() * 160),
                  Math.round(Math.random() * 160),
                ].join(',') +
                ')'
            );
          },
        },
      },
      left: 'center',
      top: 'center',
      right: null,
      bottom: null,
      width: 400,
      height: 300,
      data: data,
    },
  ],
};