You're welcome! :D I'm glad it was useful :) Downloading 1.0.1 ASAP!
I'll attach a picture of what I did, to show you what I mean by "opposite corners"
EDIT: The image doesn't appear to be showing properly, so here it is on Imgur instead: https://imgur.com/a/UYJfKVQ
I had to add those two tiles in the middle in order to complete the 16-piece auto-tiling.
I finished going through the rest of the sprites and only had a couple notes to add:
It would be handy for the sake of importing files to give every file a unique name (e.g. Chicken_Eat and Cow_Eat vs just Eat for both)
The down and up slash sprites have portions that are "cut off", which seems to be based on where the sword covers, but when using them with the sickle, those areas aren't covered, so there are holes left behind. (I have only just started working on combining the animations, so it's also possible that I'm misunderstanding the alignment)
Looking at Smash_Side more closely, it looks more like a stab...I'm assuming a Stab action is coming, since the sword has stab animations, so I'm wondering if Smash_Side got mixed up with the upcoming Stab_Side?
Thanks!