Board Thread:Support Requests - Designing Your Wiki/@comment-26525672-20201010143938/@comment-9605025-20201013175901

Yes, indeed the WEBP format is allowed on UCP wikis. Uploading WEBP is probably the best option. However, if you want to go with hotlinking, there is HotlinkVignette. It isn't 100% working the way I want but it is working for basic cases; which seems to be what you would want. But again, only if you think you really need it. I believe the WEBP option is the better way to go.