Change color and Padding of a Picker

Hello,

I'm trying to change the color of a Picker using a custom renderer. This is what I have.

using System;
using Xamarin.Forms.Platform.iOS;
using AppNamespace;
using Xamarin.Forms;
using AppNamespace.iOS;
using UIKit;

[assembly: ExportRenderer(typeof(CustomPicker), typeof(CustomPickerRenderer))]
namespace AppNamespace.iOS
{
    public class CustomPickerRenderer : PickerRenderer
    {

        protected override void OnElementChanged (ElementChangedEventArgs<Picker> e)
        {
            base.OnElementChanged (e);
            if (this.Control == null) return;

            Control.TextColor = UIColor.White;
            Control.TextAlignment = UITextAlignment.Center;
        }
    }
}

I then created the widget like this:

var picker = new CustomPicker {
    Title = "Select another one...",
    BackgroundColor = Constants.DefaultColor.WithLuminosity(.4f),
    HorizontalOptions = LayoutOptions.FillAndExpand,
};

My problem is, even when the Background Color is successfully set up, I can't achieve to change the text color of the "Select another one..." text. I tried using Control.TextColor and Control.TintColor but both of them are not working.

Another thing I don't know how to do is to add padding. The Picker class doesn't have a Padding property, but I assume I can use the custom renderer to gave it the necessary padding.

Any hints?

EDIT: According to the custom renderer, the Picker is just a UITextField. I've checked it out and tried looking for some sort of placeholder color but I can't seem to find any "color" option there.

EDIT 2: The text alignment attribute works just fine.