Hi,
I was successfully extending Highcharts v8.2.2. to draw arrows on the line charts:
http://jsfiddle.net/v45wLcf6/
But the same code it's not working with v9:
http://jsfiddle.net/vyfsf1ft/18/
It's possible to make the extension working also with Highcharts v9?
Thank you.
Kind Regards,
Domenico