(PF_IMAGE, "image", "Input image", None), (PF_LAYER, "layer", "Input layer", None), (PF_CHANNEL, "channel", "Channel", None), (PF_DRAWABLE, "drawable", "Drawable", None),
(PF_IMAGE, "image", "Input image", None), (PF_LAYER, "layer", "Input layer", None), (PF_CHANNEL, "channel", "Channel", None), (PF_DRAWABLE, "drawable", "Drawable", None),