State.categoryAxis.title
configurationThe title configuration of the category axis.
The categoryAxis.title.text option must be set in order to display the title.
state.categoryAxis.title
ObjectThe text color of the title. Accepts a valid CSS color string, including hex and rgb.
The font style of the title.
Default: "16px Arial,Helvetica,sans-serif"
The text of the title.
The text can be split into multiple lines by using line feed characters ("\n").