The Project window displays the list of packages currently installed in your project from all sources. This list includes immutable packages that you installed from a package registry and mutable packages (such as embedded and local packages).
You can inspect the contents of any package that appears in the Project window. You can also inspect the package manifest through a dedicated Inspector.
To inspect a package manifest, open the package’s package.json file from the Project window.
For packages with a custom or local label, you can change the package contents and edit the package manifest.