Right click on the point in the center to delete given pattern.[br][br]The tool second from left yields a rhombus with acute angle 60 degrees. [br][br]To use the rhombus tool, [br][list][*]click on an existing point or create a new point, [/*][*]input the length of the side of your rhombus, [/*][*]input rotation from the horizontal.[br][/*][/list][br]The fourth tool from the left yields a rhombus with acute angle 45 degrees. It works in the same way.[br][br]The three applets are for you to create three different designs.