Draw the background. MOVE specifies the lower left corner of the rectangle that forms the flag. BAR draws the rectangle using the values of X and Y for the upper right corner. The LINE value of 3 fills the figure with the specified color.
   function='move'; x=20; y=30; output;
   function='bar'; x=80; y=80; color='blue';
      line=3; style='solid'; output;