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;