Xamarin.Forms (Android) Entry custom renderer - entry bottom border only

Is there any custom renderer solution, for customizing Entry in order to achieve bottom border only (with some custom color)?

There are indeed some solutions for iOS, like that:
https://gist.github.com/davidtavarez/e3580c98357edd89de6f
but I couldn't found anything for Android (and not using any XML border definition - I would like to have everything in code).

Thanks!