Vr. 'Carlsbad' normally has a lot of dark reddish-bronze coloration to the underside and tips of the leaves, but that hot pink is something else. It's kind of nice as long as those leaves don't then decide to curl up lengthwise and dry up, but I've found that is often the next stage and I don't know why. I once asked a panel of experts what causes that and none of them knew either, but they were all familiar with it. Nat DeLeon said he calls that color "death rattle red". Hopefully that won't be the case with your plant!