Try this:
Add in the renderer section.
The charts are based on AM Charts. You can read more about rendering at https://www.amcharts.com/docs/v4/tutorials/wrapping-and-truncating-axis-labels/.
Try this:
Add in the renderer section.
The charts are based on AM Charts. You can read more about rendering at https://www.amcharts.com/docs/v4/tutorials/wrapping-and-truncating-axis-labels/.