So I've found more compressed graphics data. The graphics for things like the Characters Names at the top of the Screen, the yellow text for the tactics you choose, and things like the pop ups for words like "Counter", "Miss", as well as weapon and skill level ups appear to be compressed and stored in every BBG file.I think this is the final version of my compression tool. At this point I just wanted to wrap this up and fix some bugs and problems I found while messing with character sprites. This new version doesn't really add anything new as far as the translation is concerned, unless you want to try different compression modes and tables. This release also includes the source code. If there's anything else I can help with just say it and I'll give it a try.
At a quick glance it looks like it might be going into a similar kind of compression as the other data, but when I try the decompression tool it gives me an error saying "Compression Table Invalid". So I'm guessing there's another compression table somewhere that it's using.
The data can be found in either B001.BBG at offset 0x10D96 or in the full data track iso at offset 0x26596. The decompressed data get's written to 0x4000 in VDP1's VRAM.