Rectangle elements are used for filled and unfilled rectangles
and rounded rectangles.
The resulting rectangle is
displayed in the drawing area. You can drag the yellow handle at the top-left
corner towards the center of the rectangle to round the corners of the
rectangle.
The default formatting for a rectangle is solid, black 1
pixel line and white fill. Setting line and fill, position and size, and
condition properties of a rectangle is the same as for other elements: please
see Section
3.1.3 for more
information.