Examine source code of Time2GoGo

{
  "manifest_version": 2,
  "name": "Time2GoGo",
  "version": "1.3.0",
  "author": "tobias haubold",
  "developer": {
    "name": "tobias haubold",
    "url": "http://whz-cms-10.zw.fh-zwickau.de/toh/time2gogo"
  },
  "homepage_url": "http://whz-cms-10.zw.fh-zwickau.de/toh/time2gogo",
  "description": "The extension displays a sidebar beside the *come and go bookings* in your *NovaTime Workflow Journal* with useful human friendly information. This includes your current working hours, the time needed to complete your stint and other useful information as well. See the homepage for more detailed information. This add-on is just useful within the 'NovaTime Workflow Journal' webpage and contains just the working hours calculation rules for the University of Applied Sciences Zwickau! In case you stranded here by accident, it's probably not what you're looking for ;-)",
  "incognito": "spanning",
  "applications": {
    "gecko": {
      "id": "@timetogogo"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://workflow.whz.de/*",
        "https://workflow.fh-zwickau.de/*"
      ],
      "all_frames": true,
      "js": [
        "node_modules/jquery/dist/jquery.min.js",
        "node_modules/bootstrap/dist/js/bootstrap.bundle.min.js",
        "node_modules/@fortawesome/fontawesome-free/js/all.min.js",
        "web-extension/TimeToGoGo.js",
        "web-extension/sidebar.js",
        "web-extension/wire.js"
      ],
      "css": [
        "node_modules/bootstrap/dist/css/bootstrap.min.css",
        "web-extension/sidebar.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "web-extension/sidebar4.html"
  ]
}