Given how often this has been requested, I think it must be
very difficult for FD to do this. My guess, as a software engineer, is that all of their HUD artwork has been drawn in orange and that they think they can't fix it without redrawing all the artwork.
The PC HUD colors are a hack: The worst part is not having to edit configuration files; it's that
all the HUD colors change and it becomes very hard to distinguish friend from foe on the radar. (For example, enemies might be blue and friends would be purple.)
Assuming that the all the original artwork is orange, now that FD has indicated that they are looking at fixing long-standing issues, I'll link to my previous possible software-only solution (using a hue filter, so there's no need to redraw the artwork), to make it easy for them to find:
[updated] I've tweaked my code, to better preserve variations of hue.
https://forums.frontier.co.uk/showt...-implementation-of-custom-UI-colors?p=5243025