text: import highchartsGlobals from 'highcharts';
  
  var Highcharts = highchartsGlobals.Highcharts;
  
  var sparklinesDefaults = {
      chart: {
          renderTo: null,
          backgroundColor: null,
          borderWidth: 0,
          type: 'area',
          margin: [0, 0, 0, 0],
          width: 125,
          height: 34,
          style: {
              overflow: 'visible'
          },
          skipClone: true
      },
      title: {
          text: '',
          style: {
              fontSize: '10px'
          },
          align: 'right',
          verticalAlign: 'bottom'
      },
      credits: {
          enabled: false
      },
      xAxis: {
          labels: {
              enabled: false
          },
          title: {
              text: null
          },
          startOnTick: false,
          endOnTick: false,
          tickPositions: []
      },
      yAxis: {
          endOnTick: false,
          startOnTick: false,
          labels: {
              enabled: false
          },
          title: {
              text: null
          },
          tickPositions: [0]
      },
      legend: {
          enabled: false
      },
      tooltip: {
          backgroundColor: null,
          borderWidth: 0,
          shadow: false,
          useHTML: true,
          hideDelay: 0,
          shared: true,
          padding: 0,
          positioner: function (w, h, point) {
              return { x: point.plotX - w / 2, y: point.plotY - h};
          }
      },
      plotOptions: {
          series: {
              animation: false,
              lineWidth: 1,
              shadow: false,
              marker: {
                  radius: 1
              },
              fillOpacity: 0.2
          },
          column: {
              borderColor: 'silver'
          }
      }
  };
  
  Highcharts.CONFIG_DEFAULTS = {
      sparklines: sparklinesDefaults
  };
  
  export default Highcharts;
  