What are this white on black numbers on xamarin's / C# visual windows builds?

Question

When I build a Xamarin Project for windows 8.1 or 10 (running it in "local machine") I get some numbers in the top left like this "0":

I searched about it without luck (probably I am using the wrong keywords), What are those? Can I changed their position or disable them?

Answer 1

That's the windows frame rate counter. If you want to disable it, go to your App.xaml.cs file and remove/comment out the following code from the OnLaunched method:

#if DEBUG
        if (System.Diagnostics.Debugger.IsAttached)
        {
            this.DebugSettings.EnableFrameRateCounter = true;
        }
#endif