state.categoryAxis.labels.fontString(default: "12px Arial,Helvetica,sans-serif")
The font style of the labels. Accepts a valid CSS color string, for example "20px 'Courier New'".
In this article
String(default: "12px Arial,Helvetica,sans-serif")The font style of the labels. Accepts a valid CSS color string, for example "20px 'Courier New'".