You can always use those 3 little boxes to 'get the original base color'.
The next problem is , indeed; how to get the same color as an armor; when the base color itself, interacts different with different materials.
" Just make bosses challenging again, remove LV 90 REQ for Hero, and restore Assist Function"
Anyway, for me no really rollback needed. Since this stuff 'has to be implanted' for future content.
Tho what I'd like to see, is abit more 8 man raids now, cuz 4 man is pretty boring.
You end up doing 50%+ easily if the party sucks a lil bit already.