Popup Screen with Transparent Background

public class popup extends PopupScreen
{

popup()
{
    super(new HorizontalFieldManager());

    setBackground (BackgroundFactory.createSolidTransparentBackground (Color.WHITE, 0));
    setBorder (BorderFactory.createRoundedBorder(new XYEdges(),Color.BLACK,2));


   //Here you can add Fields to the popup Screen.

}

}