在swift中将2个视图与自定义颜色混合？

import UIKit

// 创建自定义颜色
let customColor = UIColor(red: 0.5, green: 0.2, blue: 0.8, alpha: 1.0)

// 创建两个视图
let view1 = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
let view2 = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

// 设置视图的背景颜色
view1.backgroundColor = UIColor.red
view2.backgroundColor = UIColor.blue

// 将两个视图的颜色混合
let blendedColor = UIColor.blend(color1: view1.backgroundColor ?? UIColor.clear, color2: view2.backgroundColor ?? UIColor.clear)

// 设置混合后的颜色为第一个视图的背景颜色
view1.backgroundColor = blendedColor

// 将视图添加到视图层级中
let containerView = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
containerView.addSubview(view1)
containerView.addSubview(view2)

// 在界面上显示容器视图
let viewController = UIViewController()
viewController.view = containerView

// 在屏幕上显示视图控制器
let window = UIWindow(frame: UIScreen.main.bounds)
window.rootViewController = viewController
window.makeKeyAndVisible()