RGB for Lightning Network. I'm so excited.

"The classic example is CryptoKitties, those breedable NFT felines minted on the Ethereum network. Another perhaps less-familiar example comes from the RarePepe cards issued on Bitcoin using the Counterparty protocol.

RGB could have a leg up on these forms of NFTs because RGB would allow you to send the computer file for the NFT in the same transaction as the asset that represents it. When you send a CryptoKitty as an ERC-721 token on Ethereum or a RarePepe “colored coin” on Bitcoin, the file for the actual collectible has to be transferred separately. With RGB, both asset and collectible can be “sent inside the same channel,” Zucco claimed.

A more salient use case for RGB, according to Zucco, would come from issuing tether on the protocol. Since all transactions are handled off-chain, Zucco said RGB carries with it the promise to be possibly more private than even the Lightning Network.

For something like the stablecoin tether, whose on-chain address on blockchains like Bitcoin, Ethereum, EOS and Tron can be easily tracked and, in extreme scenarios, blacklisted, this could bolster tether’s privacy and censorship resistance."

RGB main properties:

Confidentiality

Safety

Scalability

No bitcoin timechain congestion: transactions keep only homomorphic commitments which require no additional storage

Future-ready without hardforks

Higher censorship-resistance than in bitcoin: miners do not see that there is something going on with assets in transactions

Source: Link Link 2