Aqua button version using View

AquaButtonView.swift

import SwiftUI

struct AquaButtonView<Content>: View where Content: View {
    let color: Color
    let content: () -> Content
    var body: some View {
        content()
            .background(
              LinearGradient(
                gradient: Gradient(
                              colors: [.white, color.opacity(0.6), .white]),
                              startPoint: .top, 
                              endPoint: .bottom))
            .cornerRadius(12)
            .overlay(RoundedRectangle(cornerRadius: 12)
                        .stroke(color, lineWidth: 2.0))
            .shadow(color: color, radius: 6, x: 0.0, y: 6.0)
    }
}

struct AquaButtonView_Previews: PreviewProvider {
    static var previews: some View {
        AquaButtonView(color: .blue) {
            Text("My button")
                .foregroundColor(.white)
                .padding()
        }
    }
}