Editing item materials
MlsetupBuilder is a Cyberpunk 2077 modding tool used to edit and build .json versions of .mlsetup files, allowing easy access to data used to edit different, and special styles for the game models, with 3d viewport to display where the materials are to applied to each part of the model.
MLSB can be downloaded from the releases section on GitHub, the latest release this documentation refers to is the version 1.6.6
Open the preferences via "File" -> "Preferences".
Set the following values:
Open the menu "Build" and select first "Repository" to uncook the archives:
For editing material, "Appearance" and "Decal materials" are most relevant, maybe "gamedata" as well.
Click "Uncook". A file selector will open.
Navigate to the same path you set under "Game archives folder", and press OK.
After the process is complete, select "Microblends" to extract the microblends, normals, decals and layer masks.
Credits to EzioMavericks for the video