struct ContentView: View {
    @State private var progress = 0.5
    
    var body: some View {
        VStack {
            ProgressView(value: progress)
            Button("More", action: { progress += 0.05 })
        }
    }
}

struct ContentView: View {
    var body: some View {
        VStack {
            ProgressView(value: 0.25)
            ProgressView(value: 0.75)
        }
        .progressViewStyle(DarkBlueShadowProgressViewStyle())
    }
}

struct DarkBlueShadowProgressViewStyle: ProgressViewStyle {
    func makeBody(configuration: Configuration) -> some View {
        ProgressView(configuration)
            .shadow(color: Color(red: 0, green: 0, blue: 0.6),
                    radius: 4.0, x: 1.0, y: 2.0)
    }
}