My idea is that it is only possible trhough reactors.
For exemple, a reactor will detect any change to the variable CECOLOR (if you mean that the protection is active during drafting time and not to programming).
An easy way. Then CECOLOR could be interactively changed to a close value.
But, as I'm not a reactor speciallist for now, I could only help with 2004 color problems (that I learnt to solve here, at theswamp).