All genesis Habbo X rooms have a "room design" trait. At the moment, this relates exclusively to the items inside the room and how they are arranged – basically what the room looks like. If you edit your room and move the items inside it around you'll also be able to reset the room to its original design.
However, in the future, the rarity of your room (common, uncommon, rare, epic, legendary) and the size of your room (regular, studio, junior, executive, or presidential) will directly affect the rarity of items your room produces with its NFT factory functionality.