UserControl Renderer in UWP

I am trying to make a Xamarin Forms application that works in Android and IOS work in UWP.

I am stuck at the following

We have a CustomButton class in or PCL that implements a View

It has an Image, Text and Button Properties.

In android, we created a corresponding Class that implements FrameLayout and a Renderer

the renderer overrides OnElementChanged and OnElementPropertyChanged

It works flawlessly.

Now I want to do same thing in UWP.

My problem is that I don't know what my UWP CustomButton Class in should implement. FrameLayout is not a possibility.

Can anyone point me in the right direction.

Thanks