I've not meddled with fonts much but I can look around for which font it is using. Last time I changed Fonts around I got desperate and dumped and edited textures for it since I didn't have much luck from the in game files.
Also I do not know how to edit several kinds of files in the wii make and neither can brawlbox but I'll attempt what I can to get fonts changed from with in the game directory it's self.
The message files look like they could be messed with by a hex editor or something But it is a guess.
I don't know much about how this game uses fonts and such. It's confuseing enough with textures and I jumped into modding this game knowing pretty much nothing.
I'm gonna try what I can to figure this out but I've got some other stuff I need to do so I may be a bit.
EDIT:The only file that actually seems to be needed in the TPL folder is savebanner.tpl
for the US folder. I found out it is loading stuff from the UK folder as well for the PAL version
eurgher "rant" why does this game never make sense