TODO:
Have you ever wanted to change the Font of your Navigation bar text?
SOLUTION:
//Put this public override bool FinishedLaunching of AppDelegate
UITextAttributes titleTextAttributes = new UITextAttributes();
titleTextAttributes.Font = UIFont.FromName("Chalkduster", 20);
rootNavigationController.NavigationBar.SetTitleTextAttributes(titleTextAttributes);
NOTES:
In AppDelegate, put the lines of code above in your FinishedLaunching method. rootNavigationController is the root nav control you have declared in that class.