Highcharts dynamically change bar color based on value
<p>I am creating a column type graph using json data. Here is the JS function i call to get the data using ajax call and plot the chart.</p>

<pre><code>function getChart(){
    var categorySeries = [];
    var dataSeries = [];            
    var url = "CallToControllerURL";

    $.getJSON(url, function(response) {             
        $.each(response, function(i, item) {
            categorySeries .push(response[i].dateVal);                  
            dataSeries.push(response[i].count);             
        });

        $('#chartDiv').highcharts({
            chart : {type : 'column'},
            title : {text : 'Date vs Count'},
            xAxis : {categories : categorySeries, crosshair : true},
            yAxis : {allowDecimals: false, min : 0, title : { text : 'Count'}},
            plotOptions : { column : {  pointPadding : 0.2, borderWidth : 0,    allowPointSelect: true  } },
            series : [ {name : 'Nbr of Records',data : dataSeries } ]
        });             
    });
}
</code></pre>

<p>I want to be able to modify the color of bar for any day if the count is greater than a particular value, say 10.</p>

<p>This is how the json input to the function.</p>

<pre><code>[{"id":3,"dateVal":"2015-11-12","count":6},{"id":2,"dateVal":"2015-11-11","count":8},{"id":1,"dateVal":"2015-11-10","count":5}]
</code></pre>

<p>Any suggestions how i can do this?</p>