Ulgoth's Beard Artwork

NI lists the very pretty ulgothst.mos

afaik surprisingly considering its beauty, this doesn't appear to be used in the game (can anyone else confirm please?)

To help me mod it into the game, does anyone know what I can copy as a template - I'm thinking a dream script or werewolf isle transition as they both trigger artwork screens (without chapter transitions), though I cant actually find the scripts.
Does anyone know where they are/how it's done please?

Any help would be really appreciated please