text: export default {
    title: {
      text: 'World Flights',
      left: 'center',
      textStyle: {
        color: '#eee'
      }
    },
    tooltip: {
      trigger: 'item',
      formatter: null
    },
    geo: {
      map: 'world',
      left: 0,
      right: 0,
      silent: true,
      itemStyle: {
        normal: {
          borderColor: '#003',
          color: '#005'
        }
      }
    },
    series: [
      {
        type: 'lines',
        coordinateSystem: 'geo',
        data: null,
        large: true,
        largeThreshold: 100,
        lineStyle: {
          normal: {
            opacity: 0.05,
            width: 0.5,
            curveness: 0.3
          }
        },
        // Set the blending mode to overlay
        blendMode: 'lighter'
      }
    ]
  };
  