You can extract the textures using BrawlBox if you need them.
Just copy and paste the FitChar files into your project/pf/char folder.
Make sure you rename the FitChar files to replace the files you wanna replace.
Also, make sure to replace the respective CSP/BP/STC files.

CSP = Character Select Portrait
BP  = Battle Portrait
STC = Stock Icon

Happy Smashing!

-Moonear7