I have a timeline chart. When I have only 3 columns (row label, start date, end date) in my timeline and color it, everything works perfectly. However, I added a another column (bar label) to my timeline, and now the coloring is all messed up. Does anyone know how to fix this issue? If it isn't, would this issue be considered a bug.

Sample code snippet on jsfiddle demonstrating the issue:
<https://jsfiddle.net/9egybsro/>

Looking at my hard-coded color array:

```
var color = ['#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#FF9900',
            '#868686',
            '#FF9900',
            '#FF9900'
          ]

```

All bars except the 3rd to last bar should be colored orange. The 3rd to last bar should be colored grey. As shown when the run button is hit, all the bars are colored orange.