Changing HGSS Elite Four VS Banner

[Delta Nite]

I think it shouldn't be that dificult to do, but after a lot time spent in searching and googling, I'd be happy with some help.

I found some edited banners in DeviantArt, but no one there seemed to know how to put it on the ROM.

[Poryhack]

I'm not gonna write a comprehensive guide but the process goes something like this:

1. Find the banner graphic in the ROM's filesystem. This is possibly the most time consuming part, unless someone else has already documented the location of this particular graphic.
   
2. Edit the file with some kind of tile editor... This could be a lot less painful then it is but sadly there are no tools that are made specifically to edit DS graphics.
   
3. Replace the original file in the ROM with your edited copy; pretty easy with all the filesystem tools out there.
   

[Delta Nite]

What program should be used when searching ?

PokeDSPic ?

Where can I find that kind of document ?

Most info we need is here at forum, or is easy to google, but is there an specific page that brings that kind of information ?

It'd be very kind of you to make a tuto, but even if you don't, thanks for the reply (:

[Andibad]

you can used crystaltile to edit sprite