#颜色

style: {
  fill: {
    type: 'linear',
    x0: 0,
    y0: 0.5,
    x1: 1,
    y1: 0.5,
    stops: [
      {
        offset: 0,
        opacity: 0.15
      },
      {
        offset: 1,
        opacity: 0
      },
    ],
  },
  fillOpacity: 1,
},