The Object Display Standard (https://docs.sui.io/standards/object-display) defines how Sui objects (e.g., NFTs) are displayed with metadata like name, description, and image URLs. It’s used for consistent rendering in wallets and marketplaces. Implement it in your Move contract by adding a Display struct with fields like name and image_url. See the Sui NFT examples for code (https://github.com/MystenLabs/sui).