Q:

Using Named font sizes for Button FontSize in Xamarin Forms

With Label FontSize can be set using NameSized font, eg: Default, Small....
However, this is not valid when I try to set Button FontSize to these enum,
Is there a way to do this in Xaml? 

A:

The Button has its own FontSize property. 
 <Button Text="Hello" />
    <Button FontSize="Medium" Text="Hello" />

Screenshot:

