private void FlashMessage(string level, string message)
{
var id = Guid.NewGuid();
FlashMessages.AddOrUpdate(id, new Tuple <string, string>(level, message), (_, e) => new Tuple <string, string>(level, message));
Task.Delay(TimeSpan.FromMilliseconds(FlashDelay)).ContinueWith(_ =>
{
FlashMessages.TryRemove(id, out var _);
UpdateDisplay();
});
UpdateDisplay();
}
