public nButton Button(string text, nPropAction onClick, Vector2 position)
 {
     var b = new nButton() {
     Camera = Camera,
     Color = Color.black,
     Font = "Fonts/Roboto-Regular",
     Texture = "menu.button.1",
     OverTexture = "menu.button.2",
     DownTexture = "menu.button.3",
     FontSize = 0.2f,
     Position = position,
     Size = new Vector2(2.8f, 0.4f),
     Text = text,
     Action = onClick
       };
       return b;
 }
 public nButton Button(string text, nPropAction onClick)
 {
     return Button(text, onClick, new Vector2(-5.0f, 3.0f));
 }