As the list of quests to speedrun increases, obviously more rewards need to be added to make up for the increase in points available. I'm suggesting another acorn to feed to the giant squirrel pet that will give it a metamorphosis option that makes it look grey/white, tan/brown, a light blue, or some combination.
This would perfectly match the recolour given to the graceful set by the tier 3 Adventurer's Outfit, the same way the dark-coloured metamorphosis matches the black recolour given by the Hallowed Sepulchre.