     
     func setupSelectionPickerView() {
         addSubview(selectionPickerView)
-
+        selectionPickerView.layer.backgroundColor = UIColor.green.cgColor
         matchSizeWithConstraints(view1: selectionPickerView, view2: self)
     }
 

        return layer
    }

    private lazy var leftGradientLayer: CALayer = self.createGradientLayer(ofType: .left)
    private lazy var rightGradientLayer: CALayer = self.createGradientLayer(ofType: .right)
    


        let newMaskingLayer = createMaskingLayer()
        selectionPickerView.layer.addSublayer(newMaskingLayer)
        selectionPickerView.layer.mask = createAnotherMaskingLayer()
        pickerView.layer.mask = createMaskingLayer()
        maskingLayer = newMaskingLayer
    }

