Minecraft Mod (Fabric Modloader) for 1.16.1 and above.
To use this mod you must first install fabric
and then add the mod.
Optionally, you may want to install Mod Menu. This will enable you to access the mod's configuration menu. Press "B" to bring up a menu with toggles for each tooltip from which you can also access the mod's configuration menu.
Tooltips are automatically registered through resource packs in the folder "assets/yournamespace/tooltip/" with .json files. All tooltips the mod itself specifies can be modified through this method. The namespace to do that is "advancednbttooltip". For a reference to these custom tooltips please visit the wiki.