Have some quick and dirty horribly sharpened ones back but at a third of the file size.
Get the size down without losing detail shouldn't be an issue but if you can't change the dimensions of the file then there's only so much you can do (and I've had way too many head aches with modding Pro Evo in the past with silly things like this).
Ah. The problem with gui elements specifically is that they are in an archive inside another, bigger archive. The quickbms script for ps3 could probably re-import on the big archive, but as far as I'm aware there's no such script for the smaller ones. Noesis can view and export small archives, but not re-import.
The guy who did the zero suit boob mod for xiii-2 was working on some kind of tool I think but it doesn't seem like he released it.
At this point I'm just grabbing the textures in preparation, so to speak.
For anyone interested, here's everything from system.win32.xgr/imgb combo http://sta.sh/0e9t6kabkvd. There's plenty more stuff in the gui folder but I'm not going to zip all of it up. This file seems to have the most important icons and such.
Thanks for all the hard work.I've pushed a small bugfix update and wrote about texture modding here.