color nodes by rank

client/app/scripts/charts/node.js

@@ -45,7 +45,7 @@ const Node = React.createClass({
     const textOffsetX = 0;
     const textOffsetY = scale(0.5) + 18;
     const isPseudo = !!this.props.pseudo;
-    const color = isPseudo ? '' : this.getNodeColor(this.props.label);
+    const color = isPseudo ? '' : this.getNodeColor(this.props.rank);
     const onClick = this.props.onClick;
     const onMouseEnter = this.handleMouseEnter;
     const onMouseLeave = this.handleMouseLeave;

client/app/scripts/charts/nodes-chart.js

@@ -87,6 +87,7 @@ const NodesChart = React.createClass({
           label={node.label}
           pseudo={node.pseudo}
           subLabel={node.subLabel}
+          rank={node.rank}
           scale={scale}
           dx={node.x}
           dy={node.y}