Well it’s not easy to understand what the film is “Meant to look like” especially when special effects are involved as it introduces quite a lot of color that is perhaps not meant to be there, as this process was not in it’s infancy but it was still fairly new and perhaps more so the amount of layers that were being put through an optical printer.

I do have a feeling about that part being red at least the original cinematography it was. But seeing that certain parts are un-tinted it’s a bit of a patchwork quilt unless the sky should change color very differently between shots. I was exploring the possibility that it could be consistent and remain plausible light source (the Sun).

Laterally sometimes you have to understand what something looked like before special effects to understand how it has been altered after the effects process and what may have been introduced that is unintended.

Film footage is not that difficult to figure out, special effects shots are, especially this era of effects.

The only way of keeping the original matte color would be a re-composite it won’t go back and is lost in the effects process. The binary sunset is perhaps recoverable because it’s probably only one layer.