/// <summary>
/// Detaches the specified manipulator.
/// </summary>
/// <param name="manipulator">The manipulator.</param>
/// <param name="correspondingView">The corresponding view.</param>
/// <param name="context">The context.</param>
protected override void Detach(SceneManipulator manipulator, ViewInformation correspondingView, PerSceneContext context)
{
manipulator.Remove(context.BackgroundPainter);
manipulator.RemoveResource(context.BackgroundTextureKey);
GraphicsHelper.SafeDispose(ref context.BrushResource);
}