What is the Elvish equivalent of bleaching

[Sergal Paladin]

During my current campaign of Runelords, our gnomish barbarian started turning grey. Which got me wondering if there is a similar affliction as bleaching for other races, I am aware of the transformation process of elves to drow, but, can elves suffer from bleaching? And if not, is there something similar to it that affects elves?

[Joana]

Bleaching is unique to gnomes in the Golarion setting, because they are the only race that came from the First World. (Unlike other settings where elves have a fey connection, in Golarion they come from another planet.)

[Steelfiredragon]

or so the scholars would have you believe...