Change pointers page to use new ellipse drawing APIs.
Change pointers page to use new ellipse drawing APIs.

SuperJMN/Avalonia,SuperJMN/Avalonia,SuperJMN/Avalonia,AvaloniaUI/Avalonia,jkoritzinsky/Avalonia,SuperJMN/Avalonia,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,AvaloniaUI/Avalonia,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,SuperJMN/Avalonia,SuperJMN/Avalonia,jkoritzinsky/Perspex,AvaloniaUI/Avalonia,grokys/Perspex,AvaloniaUI/Avalonia,SuperJMN/Avalonia,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,grokys/Perspex,AvaloniaUI/Avalonia,jkoritzinsky/Avalonia