Examine source code of USVN_Treeview

{
  "name": "USVN_Treeview",
  "version": "0.2resigned1",
  "description": "Modify project display in USVN to a treeview",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "USVN Treeview"
  },
  "manifest_version": 2,
  "icons": {
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "js": [
        "jquery-3.3.1.js",
        "background.js"
      ],
      "css": [
        "customStyles.css"
      ],
      "matches": [
        "http://dlp-repository/usvn/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{75f53361-969c-4fe5-ae8e-3889bff8ae8a}"
    }
  }
}