*.bjson Files contain alot about the Game, including how fonts, textures, and Models are Rendered, and Displayed.
In today's Guide we will go over 2 ways to Mod/Edit these Files, one of which being Extremely Experimental, but alot easier than traditional means.
Manually Editing the File.
Before reading this section, please readup about it in docs-and-tools, it has free documentation on the File Format itself, and how it operates compared to Traditional *.json Files.
You will need a Hex Editor like ImHex or HxD (my personal favorite).
Since there is alot of Stuff to understand and yet to be learned from this Format, we highly recommend STBrian/STBUniverse's MC3DS-BJSON-Editor.
Using *.bjson Editor:
Download the *.bjson Editor from the link Here: https://github.com/STBrian/MC3DS-BJSON-Editor/releases/latest.
Windows Defender might say the File is a Trojan/Virus, it isn't Malware, and is fully Open-Source.
After that fiasco with Windows Defender, start the application up, and Navigate to: File > Open in the Context Menu, and load your *.bjson File.
If you're looking to Modify Geometry l, you'll need to look for "Cube, Pivot, and Rotation" Objects, and also Texture Width and Heights.