One of that advantages of implementing a new system instead of trying to retrofit the old system to the new task is that you are working with new stuff. Playing around with old code that may introduce problems for other areas in the code could be a nightmare, I think that's part of the problem they are having with customisable HUD colours. It should be simple to do, but it apparently isn't probably because of the way the legacy code is implemented.
Starting off with a clean slate with the task of "giving us night vision" rather than playing around with old code is going to be far easier. I would rather have a new system that has nothing to do with the ground landing radar but everything to do with what we want than a kludge that may be almost what we want but never as good as it should be.
