"You will need to pretend that you are still color blind."

"...Why?"

"People will assume it's nefarious in nature if you fail to hide it."

"What, like that I - got evil surgery, or....?"

"It varies... it's possible that they'll believe you were lying about being unable to see in color previously, or that the surgery was acquired from shady sources... it's also possible they'll find a way to blame it on an external entity, given that I performed the transformation."

"And that's you if they know you, but if not... they just make something up?"