I recognize that the color is inconsistent in the GOUT. I'm not commenting on skin tones, or the general tint of an entire scene. I'm pointing out a discrete inconsistency that is specific to a very small area of one scene.

I also know that the blue buttons on Vader's chest piece have been a point raised in this thread before and I believe that Harmy has already changed those buttons back to green in a number of shots. It's possible that the GOUT got Vader's button wrong. It's also possible (maybe even probable given that the buttons have been changed to green in a number of other scenes) that this was a change that Harmy missed.

As I recall, in the last work print, Harmy missed the color switch to the landing pod hatch. It's a good thing that everyone didn't adhere to FO's message, otherwise that omission would have remained in the final product.

If I'm wrong and I wasted Harmy's time, I apologize. Harmy, I am incredibly grateful for everything you've done and for your willingness to share it with us all. Thank you, again.