         lineChartDataSet_Layer1.drawCirclesEnabled = false
         lineChartDataSet_Layer1.mode = .CubicBezier
         lineChartDataSet_Layer1.cubicIntensity = bezierIntensity
+        lineChartDataSet_Layer1.setColor(UIColor.darkGrayColor())
         
         /* Customize the appearance of line 2 (middle layer) */
         lineChartDataSet_Layer2.setColor(plotBackgroundColor)

        print("Stepper was tapped: ")
        print(sender.value)
        
        slider.value = Float(stepper.value)
        
        setMorphNumbers(slider.value)

        lineChartDataSet_Layer2.fillAlpha = 1.0
        lineChartDataSet_Layer2.mode = .Stepped
        lineChartDataSet_Layer2.drawCirclesEnabled = false
        //lineChartDataSet_Layer2.setColor(UIColor(red: 96.0/255.0, green: 237.0/255.0, blue: 179.0/255.0, alpha: 1.0))
        
        /* Customize the appearance of line 3 (top layer)*/
        lineChartDataSet_Layer3.setColor(lineColor)
        lineChartDataSet_Layer3.drawCirclesEnabled = false
        lineChartDataSet_Layer3.mode = .CubicBezier
        lineChartDataSet_Layer3.cubicIntensity = bezierIntensity
        lineChartDataSet_Layer3.setColor(UIColor.darkGrayColor())
        
        
        let linesToPlot = [lineChartDataSet_Layer1, lineChartDataSet_Layer2, lineChartDataSet_Layer3]
