如何用SwiftUI在macOS上可靠地检索窗口的背景色？

struct CustomView: NSViewRepresentable {
    func makeNSView(context: Context) -> CustomNSView {
        return CustomNSView()
    }
    
    func updateNSView(_ nsView: CustomNSView, context: Context) {
        
    }
}

class CustomNSView: NSView {
    override func drawBackground(_ dirtyRect: NSRect) {
        guard let window = self.window else {
            return
        }
        
        let backgroundColor = window.backgroundColor ?? NSColor.clear
        // 在这里可以使用backgroundColor来获取窗口的背景色，并进行相应的处理
    }
}

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, World!")
        }
        .frame(maxWidth: .infinity, maxHeight: .infinity)
        .background(CustomView())
    }
}

@main
struct YourApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}