Desktop Rectangle
From Xojo Documentation
Contents
A Rectangle control draws a rectangle that can be of any length, width, border color, and fill color. By default, rectangles are 100 pixels in length and width, with a black border that is 1 pixel thick and a white center. Because you can control the color of the left and top borders independently from the right and bottom borders, you can easily create rectangles that appear to be sunken or raised.
See Also
Rectangle class