Complete 1-7 Stars Caravan Quests (excluding TRAINING quests) to unlock the Caravaneer's Challenge Complete ALL Caravan quests (excluding Training quests) to unlock the Master's Test.

Effect	How to unlock
Rainbow Pigment Effect	Complete "The Caravaneer's Challenge" urgent quest.
Rainbow Pigment Effect	Complete "The Master's Test" (if completed before the Caravaneer's Challenge).