public static void LoadScene(string fileName)
{
if (mScene != null)
{
mScene.RemoveFromManagers();
mScene.Clear();
}
SpriteEditorScene ses = SpriteEditorScene.FromFile(fileName);
mScene = ses.ToScene(AppState.Self.PermanentContentManager);
mScene.AddToManagers();
FileMenuWindow.AttemptEmitterAttachment(fileName);
}