Assign color based on values to trellis column chart

[AKG1_old1]

Hi,

I am using trellis column chart in my dashboard. I am looking to change bar colors based on values.

Requirement : if value = "-1" it should be Green, All others Red.

I am able to change same color for all values but not sure how to do it based on values.

<option name="charting.seriesColors">["0x00A572"]</option>

Thanks