I'm trying to use the new .formStyle(.insetGrouped), as mentioned in the WWDC 2022 presentation "What's new in AppKit". However, I don't see it in the documentation for FormStyle, and the following code below fails to compile because it's not a member: import AppKit import SwiftUI import PlaygroundSupport struct ContentView: View { @State var text = "" @State var toggle = false var body: some View { Form { TextField("Text", text: $text) Toggle("Toggle", isOn: $toggle) } .formStyle(.insetGrouped) } } PlaygroundPage.current.setLiveView(ContentView()) Am I missing something here (i.e. declaring some SDK version)?

How do I check if Stage Manager is enabled in my code? And I want to turn the Stage Manager on or off with code.