title: label hyperlink Graphviz
body: <p>I try to find out in Graphviz, how to make a label "1" colored and at the same time a hyperlink. Is this possible? Please see the example below. </p>
  
  <p>F</p>
  
  <pre><code> &lt;graphviz&gt;
  
   digraph vvv
   {
   rankdir=LR
   a2 [href="http://www.apple.com"]
   {
   a0-&gt;a1[href="http://www.uk.com"] [label="1"] [color =red];
   a1-&gt;a2 
   }
  
   a2[style=filled,color=yellow]
   a0[style=filled,color=lightgrey]
  
   &lt;/graphviz&gt;
  </code></pre>