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% content=tex
%
% copyright=pragma-ade readme=readme.pdf licence=cc-by-nc-sa
\startenvironment cols-000
\dontcomplain
\usemodule[visual]
\useMPlibrary[dum]
\usetypescript
[palatino]
[\defaultencoding]
\setupbodyfont
[palatino]
\setupcolors
[state=start]
\setuplayout
[grid=yes]
\setuplayout
[middle]
\setupsystem
[random=1234]
\setuppagenumbering
[alternative=doublesided,
location=]
\setupheadertexts
[pagenumber][right]
[left][pagenumber]
\setupfootertexts
[\tttf\inputfilename]
\setuptolerance
[verytolerant,stretch]
% todo: flatten
\startuniqueMPgraphic{frame}
fill OverlayBox withcolor transparent(1,.25,red) ;
fill OverlayBox withcolor transparent(1,.25,blue);
\stopuniqueMPgraphic
\startuniqueMPgraphic{contrast}
fill OverlayBox withcolor white ;
fill OverlayBox withcolor transparent(1,.25,red) ;
fill OverlayBox withcolor transparent(1,.25,yellow) ;
\stopuniqueMPgraphic
\defineoverlay[frame] [\useMPgraphic{frame}]
\defineoverlay[contrast][\useMPgraphic{contrast}]
\definecolor[red] [r=.75,g=.5,b=.5]
\definecolor[green][r=.5,g=.75,b=.5]
\definecolor[blue] [r=.5,g=.5,b=.75]
\stopenvironment
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