Here we generate a single GIF image of a box with rounded corners, border, gradient, and/or text. You can use this image as background for your buttons, tabs, text box, etc.
All lengths are expressed in pixels, except for font size, which is expressed in points. We recommend specifying a color in 'Corner background' rather than making it transparent. The background color will help us generate an image with a smoother (anti-aliased) edge.