To crack today's code, figure out what the opposite of colorblindness is and use that, I guess.
The twelve-letter answer is something an unhappy sighted person might say.
Rot13'd explanation and answer: Gurfr qbgf ner Oenvyyr. Gurer ner guerr sbhe-yrggre Oenvyyr zrffntrf, bireynlvat rnpu bgure. Bar frg vf va plna, bar va zntragn, bar va lryybj. Gurfr pbybef unir orra pbzovarq va gur PZLX znaare. Guhf, sbe rknzcyr, n qnex oyhr qbg vaqvpngrf obgu plna naq zntragn; n oynpx qbg ercerfragf nyy guerr plna, zntragn naq lryybj. Gur gjryir-yrggre zrffntr vf: PNAG OR HAFRRA
As if the Rot13 text wasn't spoiler-y enough, here are my scribbled notes
