Thank you for this. However, despite me extracting the folder in the right location and putting all the right files in the right folders, the game still doesn't load the files for me.
if so, check the users folder in windows and look for any user called itch-player (or something along those lines), then just search the appdata folder within that user
If you check out the help menu in the game it says the files should be PNG files. I was having the same issue, couldn't get my pictures to work, swapped them all from jpeg to PNG's and they worked just fine.