ellipseAnnotation property
A ellipse annotation bindings. Includes start and two events in
steps array. First updates the second point, responsible for a
rx width, and second updates the ry width.
API Docs: https://api.highcharts.com/highcharts/navigation.bindings.ellipseAnnotation
Implementation
HighchartsNavigationBindingsEllipseAnnotationOptions? ellipseAnnotation;