Color in Google's Timeline Chart bars based in the a specific value

Question

I would like to create groups of colors for the bars. The example below is raw. I would like to add a column with a category type, and based on that category I will color th

Answer 1

You have to use option:

    timeline: {
        colorByRowLabel: true
    }

From google docs: timeline.colorByRowLabel default value boolean false
If set to true, colors every bar on the row the same. The default is to use one color per bar label.