If you want to build a tool that modifies Scratch projects automatically, you can use libraries designed to parse and repackage these files:
For developers tracking Scratch projects in Git, a popular "feature" is a pre-processing script. This script automatically unzips the .sb3 upon commit to save the project.json as readable text, making it easier to see code changes in a repository. 3. Custom Extension Development sb3.zip
zeljkofilipin/scratch-games: Simple games written in Scratch If you want to build a tool that
: Use the sb3 library on GitHub to create, read, and export project files using modern abstractions. Programmatic Manipulation
(e.g., an automated project editor, a file converter, or a new block within the Scratch interface?)
To develop a feature for a "sb3.zip" file, you usually need to interact with its internal components. Here are three common ways to approach this: 1. Programmatic Manipulation