This is an addon for Jade that adds support for MineColonies and Domum Ornamentum. Note that you don't need both of these; it will adapt to whichever you have installed.
Even when installed, you can use Jade's plugin config menu to turn on or off each of these features as needed.
For multiplayer, most of these will work when JadeColonies is only installed on the client, but there are a few features that will only work if also installed on the server.
Domum Ornamentum
Materials
When enabled, this will display the variant type and materials used by DO blocks when looking at them in-world, as they would appear on the item tooltip -- this helps you make more of something that you like (or alter part of it as you go), especially if you don't have access to "pick block" in creative mode.
MineColonies
Building Name (Server-Side)
The building name and level are shown instead of the regular block name, when looking at the hut block. If you've given the building a custom name, that will appear first, with the default name just below.
When looking at a Decoration Controller block, it will display the blueprint path.
Building Pack (Server-Side)
The style pack that the building belongs to will be shown when you're looking at the hut block.
List Citizens
The citizens assigned to a building are listed when looking at the hut block. This includes both residents and workers.
Colonist Info
When looking at a colonist, their gender and job are shown.
Visitor Recruit Cost
When looking at a visitor, it will show the items they will demand if you try to recruit them.