flicker black background MaterialTextField xamarin forms Android

[alextorres50]

🐛 Bug Report

In Android when the page is loading there is a small flicker in the black color entry, the CardBackgroundColor="Transparent" property works fine but that flicker generates a bad experience on different android devices, also if I add this in CollectionView header, this flicker it's constant

Expected behavior

No black Flicker

Reproduction steps

When page is load

• Put a materialtextfield on a page, navigate to this page

When CollectionVIew has header and the header view contains MaterialTextField

• Put a materialtextfield on a header view on a CollectionView, typing in MaterialTextField

Configuration

Version: 1.8
Xamarin Forms 5.0.0.2337

Platform:

• 📱 iOS
• [ X] 🤖 Android
• 🏁 WPF
• 🌎 UWP
• 🍎 MacOS
• 📺 tvOS
• 🐒 Xamarin.Forms

[RicPower]

I have the same problem.
CardBackground flickers quick black before it turn to the color i set in the Constructor

Version: 1.8
Xamarin Forms 5.0.0.2478

Is there a fix in the meantime with a Custom Android Renderer with setBoxBackgroundColor or somehow?