docs: function () {
  		var grad,
  			horiz = this.horiz,
  			options = this.options,
  			reversed = this.reversed;
  
  		grad = horiz ? [+reversed, 0, +!reversed, 0] : [0, +!reversed, 0, +reversed]; // #3190
  		this.legendColor = {
  			linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] },
  			stops: options.stops || [
  				[0, options.minColor],
  				[1, options.maxColor]
  			]
  		};
  	}