class MyViewController: UIViewController, ColorWheelDelegate {
    private var colorWheel: ColorWheel!

    override func viewDidLoad() {
        super.viewDidLoad()

        colorWheel = ColorWheel(frame: view.frame)
        colorWheel.delegate = self
        view.addSubview(colorWheel)
    }

    // MARK: - ColorWheelDelegate

    func didSelect(color: UIColor) {
        view.backgroundColor = color
    }
}

// Extra padding in points to the view border.
colorWheel.padding = 13.0

// Radius in point of the central color circle (for black & white shades).
colorWheel.centerRadius = 5.0

// Smallest circle radius in point.
colorWheel.minCircleRadius = 1.0

// Largest circle radius in point.
colorWheel.maxCircleRadius = 5.0

// Padding between circles in point.
colorWheel.innerPadding = 3

/**
 Degree by which each row of circles is shifted.
 A value of 0 results in a straight layout of the inner circles.
 A value other than 0 results in a slightly shifted, fractal-ish / flower-ish look.
*/
colorWheel.shiftDegree = 0

// Overall density of inner circles.
colorWheel.density = 1.0

// Stroke color highlighting currently selected color. Set nil to disable highlighting.
// Default is UIColor.white.
colorWheel.highlightStrokeColor = nil

let originalHandler = rotatingWheel.panRecognizer.delegate
yourRetainedHandler = YourTweakedHandler(complementing: originalHandler)
rotatingWheel.panRecognizer.delegate = yourRetainedHandler
rotatingWheel.rotateRecognizer.delegate = yourRetainedHandler