To Hal: yep that’s the gist.

For the eyes, my thoughts for now, but can change, is the yellow eyes are involving visions. So when she sees herself it’s in full on Sith Mode.

Also the Rey “clone” scene the eyes are just yellow at the hiss.

For now, with this method, it’s not overdone for the time being and it’s more like what she’s afraid of becoming. We know that sith = yellow eyes so her visions are her as Sith Rey. Just as we see Palps restored and he is “back” to being full on Sith.