问在包装气泡图表中添加每个气泡的标题

EN

Highcharts.chart('bubble-split-chart', {
  chart: {
    type: 'packedbubble',
    animation: false,
    backgroundColor: {
      linearGradient: { x1: 0, y1: 0, x2: 1, y2: 1 },
      stops: [
          [0, '#15191b'],
          [1, '#15191b']
      ]
    },
  },
  // remove hamburger button
  exporting: {
    enabled: false
  },
  // remove chart watermark (highcharts.com)
  credits: {
    enabled: false
  },
  title: {
  text: '',
  enabled: false
  },
  tooltip: {
      useHTML: true,
      pointFormat: '<b>{point.name}</b>'
  },
  plotOptions: {
    packedbubble: {
      minSize: '1%',
      maxSize: '100%',
      zMin: 1,
      zMax: 400,
      layoutAlgorithm: {
        enableSimulation: false,
        gravitationalConstant: 0.05,
        splitSeries: true,
        seriesInteraction: false,
        dragBetweenSeries: false,
        parentNodeLimit: true
      }
    },
    legend: {
      enabled: false
    }
  },
  series: [{
    name: 'Test',
    data: [{
      name: "Lorem",
      value: 29.4,
      color: 'red'
    },
    {
      name: "Ipsum",
      value: 34.1,
      color: 'blue'
    },
    {
      name: "Dolor",
      value: 7.1,
      color: 'green'
    }],
  }, {
    name: 'Test 2',
    data: [{
      name: 'Lorem',
      value: 300.1,
      color: 'red'
    }, 
    {
      name: 'Ipsum',
      value: 20.7,
      color: 'blue'
    },
    {
      name: "Dolor",
      value: 97.2,
      color: 'green'
    }],
  }, {
    name: 'Test 3',
    data: [{
      name: "Lorem",
      value: 8.2,
      color: 'red'
    },
    {
      name: "Ipsum",
      value: 9.2,
      color: 'blue'
    },
    {
      name: "Dolor",
      value: 13.1,
      color: 'green'
    }],
  }]
});