namedescription**bold**, *italic*, [link](https://site.com) or * bullets. See https://www.markdownguide.org/basic-syntax/​\r\n or <br>) is supported. We recommend using <br> where <br><br> produces an empty line.imageanimation_url is not found. It's required even when using animation_url, or the NFT won't load.animation_urlimage. It varies according to the kind of NFT. It can be a high-resolution image, audio, video, 3D or html. It must exist for 3D and html, otherwise optional.external_uri{id} is included in this field, we replace it with the hex-padded token ID, so you don't have to generate a different external_uri for each asset of your collection.attributesbackground_coloranimation_type - Helps the site determine the format as quickly as possible and may not work without it. It should be:"animation_type": "interactive" for iNFT"animation_type": "3d" for 3D filesanimation_url - For iNFT it should be a link to your single html file, which will be loaded as an iframe where it is allowed. For 3D it's a link to the 3D file.background_color - See above