I'm not sure what your talking about...?
All you need are image files to make a character.
Oh, ok.
A couple questions: is there a specific amount of inflation sizes to have?
Is the single coloured background required or can it be transparent?
And what is the thumbs file that some characters have?
I thought it was required or smth, so I tried opening it with note pad and it just had garbled nonsense all over it.
39 days ago(+1)
I think the "Thumbs" file is a leftover Windows file that ended up zipped with the character. It has something to do with image thumbnails on Windows.
The colored background is because GameMaker 7 dose not have support for images with alpha channels.
"SuperSized.gif" can have as many frames as you want.
I went ahead and added my old Gimp Tuts here for you to look at: https://hijoke.itch.io/extra-rig2-content/devlog/1502252/gimp-tuts-for-making-yo...
There is info there that can help when making your own character.