Styling firebase push notification

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Android

Xamarin

Android4x

Good Day

I am using Xamarin forms and i use Firebase Push Notification and it is working well. Now i want to Style the Notification with a different Background and also icon image on the notification. how can i do that

What I have tried:

i tried to check the event that is fired when a device receives a notification

public override async void OnMessageReceived(RemoteMessage message)
{

but it does not give me what i need