 	}
 	
 	
-	// MARK: pinch gesture for zoom in/out
+	// MARK: Pinch gesture for zoom in/out
 	
 	lazy var pinchGestureRecognizer: UIPinchGestureRecognizer = {
 		let instance = UIPinchGestureRecognizer(target: self, action: #selector(PrecisionSlider.handlePinch))

	}
	
	
	// MARK: button for zoom out
	
	lazy var zoomOutButton: UIButton = {
		let instance = UIButton(type: .Custom)

		}
	}
	

	// MARK: Label that shows the current zoom factor
	
	lazy var zoomLabel: UILabel = {
		let instance = UILabel()
		instance.textColor = UIColor(white: 0.2, alpha: 1.0)
