How to access legendSymbols and change their shape in HighCharts

Question

I have a line chart with markers disabled. The legendSymbol is currently a line. I would like to show the symbol as a square. Any pointers?

Answer 1

With the latest Highcharts release you can also exchange the method that draws the legend icon from outside of Highcharts:

Highcharts.seriesTypes.line.prototype.drawLegendSymbol = 
     Highcharts.seriesTypes.area.prototype.drawLegendSymbol;

To use the element that is drawn for the area chart as an icon for a line graph. (I have used this in Highcharts Stockcharts but this should be applicable in basic Highcharts as well)