%D \module
%D   [       file=meta-imp-local-fences,
%D        version=2012.05.23,
%D          title=\METAPOST\ Graphics,
%D       subtitle=Fences,
%D         author=Aditya Mahajan,
%D           date=\currentdate,
%D      copyright={Aditya Mahajan}]
%C

%D This module allows one to set the thickness and color of each side of a
%D frame.

\unprotect
\def\insall_local_fence_handler#1#2%
    {\startuniqueMPgraphic {#1_local_fence}
        draw #1boundary OverlayBox 
          withpen pensquare scaled (\the\dimexpr\framedparameter{#2\c!rulethickness}\relax) 
          withcolor \MPcolor{\framedparameter{#2\c!framecolor}} ;
        
        setbounds currentpicture to OverlayBox ;
      \stopuniqueMPgraphic
      \setupframed[#2\c!rulethickness=\c!rulethickness, #2\c!framecolor=\c!framecolor]
      \getvalue{install#1framerenderer}\v!local {\uniqueMPgraphic{#1_local_fence}}}


\insall_local_fence_handler {top}    \v!top
\insall_local_fence_handler {bottom} \v!bottom
\insall_local_fence_handler {left}   \v!left
\insall_local_fence_handler {right}  \v!right


\protect

\continueifinputfile{meta-imp-local-fences.mkiv}

% Typo in pack-fen.mkiv
\unprotected
\let\setinstalledframedimensions\pack_framed_overlay_initialize_indeed

\defineframed
  [colorful]
  [
    toprulethickness=1pt,
    topframecolor=red,
    bottomrulethickness=2pt,
    bottomframecolor=blue,
    leftrulethickness=3pt,
    leftframecolor=green,
    rightrulethickness=4pt,
    rightframecolor=yellow,
    frame=off,
    topframe=local,
    bottomframe=local,
    rightframe=local,
    leftframe=local,
  ]

\colorful{Hello world}

\stoptext