Finished the inventory feature faster than I expected
Here’s an example of it in the online version:
And the mobile version:
As you can see, the operation is pretty simple: There’s a tick mark next to the color to indicate that the color is in the inventory. Clicking on the color will give you an add or delete icon to add or delete the item from the inventory (The online version doesn’t require clicking on the color, just hovering over it).
After making a change, the inventory is sent to the server to persist the changes, and whenever you come back to the online or mobile application, if you’re logged into facebook, it will pull the new inventory state so you can keep in sync.