FloatingActionButton renderer error...

Hello guys, I need some help to fix an issue here... I need to implement a FAB button to my application, and after some search in the Nuget, I choose from SuaveControls solution... In this package I got 2 problems, the package is deprecated, and the render result (only in Android) is looking like the image attached.

I try different things but nothing happens, the image (icon) isn't applyed to the button and its size doesn't changes...

The render is bellow:

public class FloatingActionButtonRenderer : Xamarin.Forms.Platform.Android.AppCompat.ViewRenderer<FloatingActionButton, FAB>
{
    public static void Initialize() 
    {
    }

    public FloatingActionButtonRenderer(Context context) : base(context)
    {
    }

    protected override void OnElementChanged(ElementChangedEventArgs<FloatingActionButton> e)
    {
        base.OnElementChanged(e);

        if (e.NewElement == null) return;

        var fab = new FAB(Context);
        // set the bg
        Android.Support.V4.View.ViewCompat.SetBackgroundTintList(fab, ColorStateList.ValueOf(Element.ButtonColor.ToAndroid()));
        fab.UseCompatPadding = true;

        // set the icon
        var elementImage = Element.Image;
        var imageFile = elementImage?.File;

        if (imageFile != null)
        {
            fab.SetImageDrawable(Context.GetDrawable(imageFile));
            //SetFabImage(imageFile);
        }
        fab.Click += this.Fab_Click;
        SetNativeControl(fab);
    }

    protected override void OnLayout(bool changed, int l, int t, int r, int b)
    {
        base.OnLayout(changed, l, t, r, b);
        Control.BringToFront();
    }

    protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        var fab = (FAB)Control;
        if (e.PropertyName == nameof(Element.ButtonColor))
        {
            Android.Support.V4.View.ViewCompat.SetBackgroundTintList(fab, ColorStateList.ValueOf(Element.ButtonColor.ToAndroid()));
        }
        if (e.PropertyName == nameof(Element.Image))
        {
            var elementImage = Element.Image;
            var imageFile = elementImage?.File;

            if (imageFile != null)
            {
                fab.SetImageDrawable(Context.GetDrawable(imageFile));
                //SetFabImage(imageFile);
            }
        }
        base.OnElementPropertyChanged(sender, e);

    }

    private void Fab_Click(object sender, EventArgs e)
    {
        // proxy the click to the element
        ((IButtonController)Element).SendClicked();
    }
}

Do you have any tip or help to me?

Best regards,
Alex Florindo