title: Bubble size in Neo4j
body: <p>Is there a way to adjust the bubble size (or colour) of nodes in Neo4j in relation to a node property value?  For example, if each node has a <code>size: "xxx"</code> property, how would I make each node scale to this size?</p>
  
  <p>Is there a similar way to adjust relation lines?  I know both nodes and relations can be adjusted to different colours or sizes all at once, but I can't figure out how to do this based on their properties.</p>
  
  <p>I tried creating a custom GRASS file, but weird things happened.  This is what I used:</p>
  
  <pre><code>node
  {
      diameter: 50px;
      color: #A5ABB6;
      border-color: #9AA1AC;
      border-width: 2px;
      text-color-internal: #FFFFFF;
      font-size: 10px;
  }
  
  relationship
  {
      color: #A5ABB6;
      shaft-width: 1px;
      font-size: 8px;
      padding: 3px;
      text-color-external: #000000;
      text-color-internal: #FFFFFF;
  }
  
  node.person
  {
      /* Node diameter is based on value. */
      diameter: {value};
  }
  </code></pre>
  
  <p>And this is what appears when I drag and drop it into the browser:</p>
  
  <pre><code>node {
    diameter: 50px;
    color: #A5ABB6;
    border-color: #9AA1AC;
    border-width: 2px;
    text-color-internal: #FFFFFF;
    font-size: 10px;
  }
  
  relationship {
    color: #A5ABB6;
    shaft-width: 1px;
    font-size: 8px;
    padding: 3px;
    text-color-external: #000000;
    text-color-internal: #FFFFFF;
  }
  
  node.person {
    /* Node diameter is based on value. */
      diameter: value;
    color: #68BDF6;
    border-color: #5CA8DB;
    text-color-internal: #FFFFFF;
    caption: '{person_name}';
  }
  
  ; {
  }
  </code></pre>
  
  <p>Not only does it add the caption can colours, and ignore the <code>{value}</code> variable, but it also adds the extra <code>;{}</code> at the end.  Nothing shows up in the graph window.  Am I screwing up the syntax, or is this a bug?</p>