gr.open 0, 0, 0, 0 !gr.orientation 0 gr.screen w,h gr.set.antialias 0 gr.set.stroke 5 r=255:g=255:b=255:a=255 for y=0 to 400 for x=0 to 400 gr.color a,r,g,b gr.point n,x,y gr.render next x next y pause 10000