add the ability to insert a custom class to data points matching specific criteria. If range is 1-9, if range is 10-19, etc.
If a data point is between X and Y integer, give it "class='low-range'" if a data point is between A and B interger, give it "class='custom-class'", etc.
Here’s how you can do this currently with a little extension: http://jsfiddle.net/highcharts/tc5b2vbr/
Dan Grebb commented
Thanks Torstein! This is perfect.