Oof, I'm sorry it took so long for me to reply, this thread had slipped my mind.
The modifications to make to the files are in this gist, this is for Sprytile version 0.4.22: https://gist.github.com/ChemiKhazi/d73f60e7d68ad7bb64df7bd9ed6bebc7
Keep in mind that using the auto update mechanism will probably break any changes you make to Sprytile.