Ultimate Grid Inventory is a template inventory to plug and play in your game. Is based in Scriptable Objects Events to make easy to implement new feature!
Take a look on previous changelogs from this asset.
Refactoring the inventory to not depended on the UI, create new classes to hold the items and will be useful for the save system in the next releases.
Now the Ultimate Grid Inventory contains a documentation in our docs website
New User Interface to the Ultimate Grid Inventory and some refactors in the Item Holder Script and also in the Window Script.