Add second parameter to colorFunction callback.

package.json

@@ -0,0 +1,25 @@
+{
+  "name": "chartjs-chart-timeline",
+  "version": "0.1.3",
+  "description": "timeline chart type for chart.js",
+  "main": "timeline.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/fanthos/chartjs-chart-timeline.git"
+  },
+  "keywords": [
+    "chartjs",
+    "chart",
+    "timeline",
+    "plugin"
+  ],
+  "author": "fanthos",
+  "license": "BSD-2-Clause",
+  "bugs": {
+    "url": "https://github.com/fanthos/chartjs-chart-timeline/issues"
+  },
+  "homepage": "https://github.com/fanthos/chartjs-chart-timeline#readme"
+}

timeline.js

@@ -241,7 +241,7 @@ Chart.controllers.timeline = Chart.controllers.bar.extend({
         var y = yScale.getPixelForValue(data, datasetIndex, datasetIndex);
         var width = end - x;
         var height = me.calculateBarHeight(ruler);
-        var color = me.chart.options.colorFunction(text);
+        var color = me.chart.options.colorFunction(text, data);
         var showText = me.chart.options.showText;
 
         var font = me.chart.options.elements.font;