Assets - Grit files

[Naewis]

Thanks a lot for this code, it helps me to understand the tip & tricks to create games on NDS.
To correctly get the skills, I'm currently trying to rewrite it from scratch (only for me)

But I'm stuck trying to convert images to include sprites.
When I'm using them with the NF_SpriteFrame function, the game tells me there is no frame 1.
Is there any tricks when making the img files ? Most of the documentation on how to make this for nightfox lib are lost behind dead links at most.

So, could you provide the .grit files with your assets ? (or put args used in the Readme ?)
I think it could solve some newbies mistakes, like probably mines (and also help cucsijuan in the Q&A section)

Thanks again a lot for this code !