This addon must be used with BetterBags. It creates a new category for all Gardiens of the Dream Items, including:

• Dreamseeds
• Currencies
• Containers

I've created a few plugins for BetterBags:

• BetterBags - Dragonflight Reputation: categories for all Dragonflight reputation items
• BetterBags - Azerothian Archives: categories for all Azerothian Archives items like Big Dig Tomes
• BetterBags - World Events: categories for all World Events like Darkmmon Faire or Remix: MoP
• BetterBags - Battle Pets Items: categories for all Battle Pets Items like Currencies, Stones or or Costumes
• BetterBags - Remix: MoP : categories all items from Remix MoP, like gems, Flasks, Scrolls or Transmogs