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1\startenvironment back-0
2
3\usemodule[simulate]
4
5\definecolor[shadecolor][r=.5,g=.5,b=.75] % blue
6\definecolor[shadecolor][r=.5,g=.5,b=.25] % yellow
7
8\definecolor[red]  [r=.5]
9\definecolor[blue] [b=.5]
10\definecolor[green][g=.5]
11
12\setuplayout
13  [width=middle,height=middle,
14   backspace=1cm,topspace=1cm,
15   header=0pt,footer=0pt,grid=yes]
16
17\setuprandomize
18  [medium]
19
20\setupbackgrounds
21  [page]
22  [background=color,
23   backgroundcolor=white]
24
25\setuptolerance
26  [verytolerant,stretch]
27
28\setupcolors
29  [state=start]
30
31\showgrid
32
33\setrandomseed{1000}
34
35\stopenvironment
36