Colour-Blighted
Traits
A colour-blighted creature is immune to the feed attack of a colour out of space. Its Charisma score is raised to 1. This graft is removed as soon as the Constitution drain and Charisma drain caused by the colour are healed, but until then, the blighted creature is aggressive toward all nonblighted creatures. It gains a +1 bonus to attack rolls and weapon damage rolls against such creatures. Every 24 hours, a colour-blighted creature must succeed at a DC 12 Fortitude save or crumble into fine white ash. Such a doom means instant death and, for most colour-blighted creatures, the only chance at escape from a life filled with pain.A creature that has the colour-blighted graft is hideously deformed and glows with the disturbing color of the creature that blighted it.
Source
Alien Archive 2 pg. 29