/// <summary>
/// Registers the default styles for the common controls and sets the default style for the Window.
/// </summary>
/// <param name="resources">The resource dictionary to which the default style definitions will be added, usually <see cref="Application.Resources" />.</param>
/// <remarks>
/// This method calls OverrideMetadata for the window style, and can only be called once per process!<para/>
/// </remarks>
public static void RegisterDefault([NotNull, ItemNotNull] this ResourceDictionary resources)
{
resources.RegisterDefaultStyles().RegisterDefaultWindowStyle();
}