The image shown beside the back button.
Syntax
[ObjCRuntime.Availability(Introduced=ObjCRuntime.Platform.iOS_7_0)]
[get: Foundation.Export("backIndicatorImage")]
[get: ObjCRuntime.Availability(Introduced=ObjCRuntime.Platform.iOS_7_0)]
[set: Foundation.Export("setBackIndicatorImage:")]
[set: ObjCRuntime.Availability(Introduced=ObjCRuntime.Platform.iOS_7_0)]
public virtual
UIImage BackIndicatorImage { get; set; }