Test and example of using font icon in Xamarin.Forms
See also:
- James Montemagno Using Font Icons in Xamarin.Forms: Goodbye Images, Hello Fonts!
- Sebastian Jensen Use FontAwesome in a Xamarin.Forms app
- Font Awesome
- Test using fonts on multiple Xamarin platforms
- FontImageSource in WPF BUG - fixed in Xamarin.Forms 4.4