     private func setupProgressView() {
         backgroundColor = DefaultValues.backgroundColor
 
-        // Clear tint and progress colors, we'll use our `gradientLayer` for showing progress instead
+        // Clear tint and progress colors, we'll use our `gradientLayer` for showing progress instead.
         trackTintColor = .clear
         progressTintColor = .clear
 

    private var alphaMaskLayer: CALayer = {
        let layer = CALayer()

        layer.anchorPoint = CGPoint(x: 0, y: 0)
        layer.position = CGPoint(x: 0, y: 0)
        layer.backgroundColor = UIColor.white.cgColor

        return layer

    private var gradientLayer: CAGradientLayer = {
        let layer = CAGradientLayer()

        layer.anchorPoint = .zero
        layer.position = .zero

        layer.startPoint = .zero
        layer.endPoint = CGPoint(x: 1.0, y: 0.0)

        return layer
