title: graphviz nodes of different colors
body: <p>I am trying to create a directed graph with nodes of different filled colors. I have created a gv file like this:</p>
  
  <pre><code>digraph mentions {
    "A" -&gt; "B"
    "A" -&gt; "C"
    "B" -&gt; "C"
    "B" -&gt; "A"
    "A" [shape=circle, style=filled, fillcolor=red]
    "B" [shape=circle, style=filled, fillcolor=green]
    "C" [shape=circle, style=filled, fillcolor=purple]
  }
  </code></pre>
  
  <p>And my command line argument is:</p>
  
  <pre><code>ccomps -zX#0-1000 testGraphCalls.gv | \
  grep "-" | cat &lt;(echo "digraph mentions {") - &lt;(echo "}") | \
  sfdp -Gbgcolor=white -Ecolor=blue \
  -Nwidth=1 -Nheight=1 -Nfixedsize=true \
  -Nlabel='' -Earrowsize=0.4 -Gsize=75 -Gratio=fill \
  -Tpng &gt; test.png
  </code></pre>
  
  <p>However, the nodes of my white circles outlined in black. Any ideas of how I can get the nodes to fill properly?</p>