WOUNDEDStevenJones WOUNDEDStevenJones - 15 days ago 9
CSS Question

Remove shadow/background glow on highcharts data label?

If you check out my http://jsfiddle.net/WOUNDEDStevenJones/oe1vcmqj/1/, the red labels on the chart have a subtle white glow behind them (in at least Chrome and FF). How do I remove that white glow? Or worst case at least change the color to the same blue so it blends in?

I've tried using

shadow
,
backgroundColor
, and other properties from their API (http://api.highcharts.com/highcharts#plotOptions.column.dataLabels), but can't figure out what is defining that glow behind the red text.

plotOptions: {
columnrange: {
dataLabels: {
enabled: true,
color: 'red',
inside: false,
xHigh: -45,
xLow: -9999999,
shadow: "#ff0000",
formatter: function () {
if (this.point.high) {
var myDate = new Date(this.y);
var newDateMs = Date.UTC(myDate.getUTCFullYear(),myDate.getUTCMonth(),myDate.getUTCDate());
return '<b>' + Highcharts.dateFormat('%m/%e',newDateMs) + '</b>';
} else {
return null;
}
}
}
}
}

Answer

Set dataLabels.styles.textShadow to false.

    plotOptions: {
        columnrange: {
            dataLabels: {
                enabled: true,
                color: 'red',
                style: {
                    textShadow: false 
                }
            }
        }
    },

Demo: http://jsfiddle.net/oe1vcmqj/2/

EDIT:

Since Highcharts 5.0.3, the property name is textOutline.

    plotOptions: {
        columnrange: {
            dataLabels: {
                enabled: true,
                color: 'red',
                style: {
                    textOutline: false 
                }
            }
        }
    },

Demo: http://jsfiddle.net/oe1vcmqj/49/