I have the same question. I have tried many different formats but nothing 
worked. 


On Monday, May 28, 2012 1:04:58 AM UTC-7, Anuroop wrote:
>
> Hi,
>
> I am using Google Charts DataTable Roles 
> https://developers.google.com/chart/interactive/docs/rolesexperimental 
> feature to draw intervals and annotations in graphs as specified in the 
> above link.
>
> But I want to explicitly specify color of the interval. For example, in 
> the below charts the color of the interval is blue:-
>
> [image: Google Charts Interval DataTable role]
>
> How can I change the color of the intervals to say yellow? I have observed 
> that by default, it takes the color of the curve, for example, the color of 
> the line is blue and hence the color of the interval is blue.
>
> I tried the following approach but failed:-
>
> addColumn({type:'number', role:'interval', color: 'yellow'});
>
> Any help would be very appreciated.
>

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