html/scripts/highchart/modules/heatmap.src.js
function (userOptions) {
		Axis.prototype.setOptions.call(this, userOptions);

		this.options.crosshair = this.options.marker;
		this.coll = 'colorAxis';
	}
function (userOptions) {
		Axis.prototype.setOptions.call(this, userOptions);

		this.options.crosshair = this.options.marker;
		this.coll = 'colorAxis';
	}
function ( userOptions ) { Axis . prototype . setOptions . call ( this , userOptions ) ; this . options . crosshair = this . options . marker ; this . coll = 'colorAxis' ; }
Extend the setOptions method to process extreme colors and color
stops.
Extend the setOptions method to process extreme colors and color stops .