Tropical Freeze Textures: the TXTR format. RTB and Parax pretty much figured it out.

[Struggleton!]

https://www.dropbox.com/s/hl5pkuwpoec84d...e.exe?dl=0
It's a little app I wrote using TGE's decompressor code. Just extract the GPU section from a TXTR file and use this program to decompress it.