align property
What part of the string the given position is anchored to. Can
be one of "left", "center" or "right". The exact position
also depends on the labels.x setting.
Angular gauges and solid gauges defaults to "center".
Solid gauges with two labels have additional option "auto"
for automatic horizontal and vertical alignment.
API Docs: https://api.highcharts.com/highcharts/yAxis.labels.align
Implementation
String? align;