Uploaded and acquired by me
From the steam version of the game, original files are 4096x4096 but empty space exists. Cropped to maximum size.
Files are in a random order but I sorted them to the exact same as the materials books. If anything is issue or out of order leave a comment.

How do I extract them from the game? I can only see .bin and .fdata, thanks.

Base +10, firedragon89 +14

You need to first buy the DLC, as even if you use a DLC unlocker it wont download. Then you need to unpack the fdata files and they'll be in the textures folder.

Base +6, firedragon89 +14, 嘟嘟噜嘟嘟 +6, Torch1412_E +5

Thank you very much. Wanted to buy it myself but after checking that Raikou wasn't playable I decided to wait for a massive sale. Perhaps she'll be playable on the DLC.

Base +7, Eclipseshadow +7

May I ask which game extractor/ script did you use? quickbms? Katana engine script? I have no prior experience and I don't know where to start. I don't mind figuring it out tho.
I did some google search and the only relevant post I found is a GBATEMP post about "cannot extract audio folder because it's stored in root".
I own the DLC and want to extract the OST from the game, it's a shame the OST is currently locked in-game.
Many thanks.

Base +10, IsaruBoy +6

OST is a very complicated process
Tool used can be this https://github.com/DeathChaos25/fdata_dump
or the fdata quickbms tool

Base +6, IsaruBoy +6

非常感谢！！

Base +5

阿周那立绘真帅，不愧是摩柯大英雄

Base +5