UI/BlackScreen.razor
@using Sandbox;
@using Sandbox.UI;
@inherits Panel
@namespace CryptidHunt

@code
{
    public RealTimeUntil LifeSpan { get; set; } = 5f;

    public override void Tick()
    {
        if (LifeSpan)
            Delete();
    }

	protected override int BuildHash() => System.HashCode.Combine( Time.Now );
}