/// <summary>
/// Start the dark animation when hamburger menu opened.
/// </summary>
private void OnPaneIsOpened()
{
DarkDivideBorder.SetVisibility(true);
EnterBorder.Begin();
}
private void OnOutBorderOut(object sender, object e)
{
OutBorder.Completed -= OnOutBorderOut;
DarkDivideBorder.SetVisibility(false);
}