Here are a few pictures of my N. x 'black dragon.' The real reddish pitcher is the most newly inflated one and hasn't colored up yet. The lighting and the camera make the colors a little funky. The pictures I've seen on the web of mature plants show the wings on the pitchers as black/purple, but I can't seem to get mine to not be green. Has anyone had any success getting the entire pitcher to become significantly darker? Or is this something that occurs with age?