struct ContentView: View {
    var body: some View {
        ReferralButtonView()
            .aspectRatio(6.5, contentMode: .fit)
            .clipShape(RoundedRectangle(cornerRadius: 16))
            .padding(20)
    }
}

let referralButton = ReferralButton()
referralButton.layer.cornerRadius = 16
view.addSubview(referralButton)