I’m not quite sure why it’s something that has not been implemented way before now, but it really should be a thing.
It should be an option, so those that want to use their own sorting method are able.
But at the very least, give us the option to sort by type and colour.
Even if it is just a very basic rudimentary form of sorting.
It can always be adjusted, refined, added to as time goes on, but just to leave it with no inventory auto sorting at all, well, seems a little odd!