Fusioncharts Real-time Line anchorbgclor

I want to use anchorBgColor attribute for Real-time Line chart. Real-time Line chart.

        function updateData() {
           var t = new Date(),
              date =
                 t.getHours() + ":" + t.getMinutes() + ":" + t.getSeconds(),
              val = Math.floor(Math.random() * (7800 - 7200 + 1)) + 7200,
              strData = "&label=" + date + "&value=" + val;

           // Feed it to chart.
           chartRef.feedData(strData);
        }

Could you recommend how to change anchorBgColor for this chart?

If you are wanting to have all the points the same color all you have to do is include the anchorBgColor property in the chart object

{
...
  dataSource: {
    chart: {
      ...
      anchorBgColor: "#26aa5a"
    }
  }
}

If you want points to change colors as you add them you have manipulate the chart data object and use setJSONData rather than using the feedData method.

<div id="chart-container">FusionCharts will render here</div>

FusionCharts.ready(function() {
  var chartObj = new FusionCharts({
    type: 'line',
    renderAt: 'chart-container',
    id: 'myChart',
    width: '500',
    height: '300',
    dataFormat: 'json',
    dataSource: {
      "chart": {
        "theme": "fusion",
        "anchorRadius": "6",
        "theme": "fusion"

      },
      "data": []
    }
  });
  chartObj.render();

    function pushNewPoint() {
    var t = new Date(),
        date =
        t.getHours() + ":" + t.getMinutes() + ":" + t.getSeconds(),
        val = Math.floor(Math.random() * (7800 - 7200 + 1)) + 7200,
        randomColor = Math.floor(Math.random()*16777215).toString(16)

    newEntry = {
      label: date,
      value: val,
      anchorBgColor: "#" + randomColor
    }

    chartData = chartObj.getChartData('json')
    chartData.data.push(newEntry)

    chartObj.setJSONData(chartData)
  }
  
  var counter = 0;
  var i = setInterval(function(){
      pushNewPoint()

      counter++;
      if(counter === 10) {
        clearInterval(i);
      }
    }, 1000);

});

Example can be seen here