ools.html">GoJS Intro</a>.
</p>
            <p>
              <a href="../samples/index.html#tools">Related samples</a>
            </p>
            <hr>
          
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            <h4>GoJS Extensions</h4>
<p>
  <b>GoJS</b> can be extended in a variety of ways.
  The most common way to change the standard behavior is to set properties on the <a href="../api/symbols/GraphObject.html" target="api">GraphObject</a>, <a href