Examine source code of Journal UI

{
  "name": "Journal UI",
  "description": "This extension will show Re-Designed page to Journal site and add some features that will save time",
  "version": "1.3.2",
  "author": "savelijln0@gmail.com",
  "manifest_version": 2,
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "cookies",
    "browsingData",
    "https://*.top-academy.ru/*"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "icons": {
    "128": "JournalUI_128x128.png"
  },
  "content_scripts": [
    {
      "js": [
        "contentjs/allLoader.js",
        "contentjs/UserCollection.js"
      ],
      "matches": [
        "https://journal.top-academy.ru/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "js/DocToast.js",
    "js/cssInjector.js",
    "libraries/easyLocalStorage.js",
    "js/SettingsAndServices.js",
    "js/setCompChecker.js",
    "js/askDialog.js",
    "js/JWTRefresher.js",
    "js/toastService.js",
    "js/startupParser.js",
    "js/functions.js",
    "js/JWTFunctions.js",
    "libraries/values.js",
    "libraries/encryptionLibrary.js",
    "libraries/fetcher.js",
    "libraries/smoothMouse.js",
    "libraries/listenersAndServices.js",
    "libraries/eventProcessor.js",
    "libraries/youTubeBackground.js",
    "libraries/yt_api.js",
    "libraries/dropdowncontroller.js",
    "etc/UI_HalloweenEvent.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "savelijln0@gma1l.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo",
          "websiteActivity"
        ]
      }
    }
  },
  "browser_action": {
    "default_popup": "popup/FastSettings.html",
    "default_icon": {
      "128": "JournalUI_128x128.png"
    }
  }
}