
\usemodule[tikz]
% \usetikzlibrary[shapes.callout] % laut Manual
\usetikzlibrary[shapes.callouts]

\setupbodyfont[bookman]

\setupTEXpage[offset=1em]

\starttext

\startTEXpage
\starttikzpicture[remember picture]
  \node[ellipse callout, draw] (node:ref) {Hallo!};
\stoptikzpicture
\stopTEXpage

\startTEXpage
\starttikzpicture[remember picture]
  \node[cloud callout, draw] (node:ref) {Hallo!};
\stoptikzpicture
\stopTEXpage

\startTEXpage
\starttikzpicture
  \node[cloud callout, cloud puffs=15, aspect=2.5, cloud puff arc=120,
    shading=ball,text=white] {\bf Imagine …};
\stoptikzpicture
\stopTEXpage


\startTEXpage
\starttikzpicture[remember picture, note/.style={rectangle callout, fill=#1}]
  \draw [help lines] grid(3,2);
  \node [note=red!50, callout relative pointer={(0,1)}] at (3,1) {Relative};
  \node [note=blue!50, callout absolute pointer={(0,1)}] at (1,0) {Absolute};
  \node [note=green!50, ellipse callout, opacity=.5, overlay, callout absolute pointer={(hallo.south)}]	at (1,2) {Outside};
\stoptikzpicture
\stopTEXpage

\stoptext

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