<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> <HTML VERSION="2.0"> <HEAD> <TITLE>GraphViz Reference</TITLE> </HEAD> <BODY BGCOLOR=white> <A NAME="top"></A> <H1 align=CENTER>GraphViz Reference</H1> <HR> <A HREF=lang.html>The DOT Language</A><BR> <A HREF=command.html>Command-line Usage</A><BR> <A HREF=output.html>Output Formats</A><BR> <A HREF=attrs.html>Graph Attributes</A><BR> <A HREF=shapes.html>Node Shapes</A><BR> <A HREF=colors.html>Colors</A><BR> </BODY> </HTML>