I really like Apple's implementation of an animated secure QR code [1] for migrating data from one device to another. It looks like undulating point cloud, and

I really like Apple's implementation of an animated secure QR code [1] for migrating data from one device to another. It looks like undulating point cloud, and it has no formal name (but is described in 2 Apple patents as an "invisible optical label") [1] https://apple.stackexchange.com/questions/301563/what-is-the-technology-used-in-ios-11-settings-migration-moving-blue-dots-par https://apple.stackexchange.com/questions/301563/what-is-the...