import AppKit import SwiftUI final class AboutWindowController: NSWindowController { convenience init() { let hosting = NSHostingController(rootView: AboutView()) hosting.sizingOptions = [.preferredContentSize] let window = NSWindow(contentViewController: hosting) window.styleMask = [.titled, .closable] window.title = "" window.center() window.isReleasedWhenClosed = false self.init(window: window) } }