 	var bgCornerRadius: CGFloat = 30
 	var barColor: UIColor = UIColor.grayColor()
 	
-	// Private properties
+	// MARK: Private properties
 	
 	private var value: Int = 0
 	private var image: UIImage!
 	private var currentSelectionY: CGFloat = 0.0
 	private var currentSelectionX: CGFloat = 0.0
 	
-	// Initialization
+	// MARK: Initialization
 	
 	required init(coder aDecoder: NSCoder) {
 		super.init(coder: aDecoder)

		update()
	}
	
	// Prerendering
	
	func generateHUEImage(size: CGSize) -> UIImage {
		

		
	}
	
	// MARK: Touch handling
	
	func handleTouch(touchPoint: CGPoint) {
		currentSelectionX = touchPoint.x
