Frost- :crap: I strongly suspect a mosaic virus here, and that's a giant bright red alert if it is!! Mutant variegation is possible too, but unfortunately, they can look very similar, and this pattern seems to fit viral better than typical variegation... you can by test kits to be sure, but IMO I'd destroy the plant, soil, pot, and anything that has had contact with it or the run-off water,... it's that bad! Any tobacco exposure? Chew, cig's, ...pipes? I'll get some other eye's on this to be sure,... a solid diagnosis is critical,... if it is, you have a major decontamination task ahead of you I'm afraid,...