score:3

Accepted answer

Replace the color names with their hex value equivalent (found here):

colors: ['#008000', '#FFA500', '#FF0000', '#FFC0CB', '#00FF00']

See JSFiddle demonstration.

I think the cause might be the Highcharts.Color object type having trouble using it's brighten functionality when the color is set using a color name instead of some other value type.


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