-- demonstration of marker fill

plot
  big light blue filled boxes,
  big light blue filled circles, 
  big light blue filled triangles,
  big light blue filled othertriangles,
  big light blue unfilled boxes,
  big light blue unfilled circles, 
  big light blue unfilled triangles,
  big light blue unfilled othertriangles,

with
  collar
  scale y 0 300 100
 -- outlines on
select  40, 70, 100, 130, 160, 190, 220, 250
  ;