macOS window with see-through background.

ClearViewApp.swift

//
//  ClearViewApp.swift
//  ClearView
//
//  Created by Don Park on 5/3/25.
//

import SwiftUI

@main
struct ClearViewApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
                .containerBackground(.clear, for: .window) // <-- one-liner meat
        }
    }
}