ClaimReminder

public sealed class ClaimReminder : EncoreTrigger
{
    public static ClaimReminder Create(string placement, TriggerOptions options = null);
}

using EncoreKit;
using UnityEngine;

public class HomeScreen : MonoBehaviour
{
    private ClaimReminder _reminder;

    private void Start()
    {
        _reminder = ClaimReminder.Create("home", new TriggerOptions
        {
            Appearance = new AppearanceConfig { AccentColor = "#5671FF" },
        });
        _reminder.HeightChanged += height => LayoutAround(height); // 0 while there is no claim
        _reminder.SetFrame(new Rect(40, Screen.height - 200, Screen.width - 80, 0));
    }

    private void OnDestroy() => _reminder?.Dispose();

    private void LayoutAround(float height) { /* move your own UI */ }
}

public sealed class EncoreClaimReminderView : EncoreTriggerViewBase
{
    public ClaimReminder Reminder { get; }      // null until the banner exists
}