Please either revert the ridiculous changes you made last patch to how this works, or allow players to create their own two-color dye modules! I prefer to use light orange primary and deep purple secondary and the only way this was even remotely possible before was putting a light orange primary only module on my chest piece, putting deep purple secondary only modules on all other armor pieces, and then using unify to make all, except my chest piece, into the light orange/deep purple primary/secondary color scheme I want. The recent changes now make that impossible as the unify now overwrites the secondary of all my other pieces with no color!
Why was this change even made? The previous way it worked, if you had nothing in your other pieces and used unify, it unified all to the chest, or if your chest had a primary/secondary two-color module on it, it would overwrite all you pieces - and that worked just fine! Now we either have to try and find peace with your staff's lack of vision in color choices, or forego using the system at all?