Well... I know the colors tool isn't really a help for modders. :S
But I
promise that the colors will be customizable in the rules soon.
And nope, you cannot use Yuri's UI without my patch.
Same for new countries, infantry deaths etc.
Though you can say "no" because of legal reasons.
I didn't notice any reaction by EA yet. K, my patch's about 2 months old only.
But all in all I doubt that EA will react after all.
People who argue with "it just causes errors" etc rather should help me fixing them then, like martyr

It's not really been tested yet, but possibly, I was able to solve the main problems my patch caused (mysterious IEs which pointed to animations).