0.18.32 is out and with it have come the new beacons and module slots.
https://imgur.com/a/3jt5nBy
The new beacons have special slots for the modules and the animation only appears to work when modules are in these new slots.
Edit .. in the folder \data\base\graphics\entity\beacon
are the masks you can use for the modules .. it that will help
Edit2 .. in the module definition there appears to be a new property "tier" that I am guessing lets you pick the icon to be used from the MIPS file in the beacon folder. So you could probably call your speed-4 tier=1
with a different tint.