4 years ago I already talked about the Animatedpng novelty https://forums.wincustomize.com/340138/page/1/#2071883
but only recently I had the idea to create some Animated docks using the .HTLM (on Firefox and Opera only)
if O.D. will support the Apng graphic format we could have animated docks similar (and better) to the examples below
the original SpotLight Docks are here https://www.wincustomize.com/explore/objectdock/16956/