Examine source code of Integrated Inbox for Gmail and Google Apps

{
  "manifest_version": 2,
  "name": "Integrated Inbox for Gmail & Google Apps",
  "author": "Michael A. Balazs",
  "version": "4.0.4",
  "description": "All your Google services Integrated into your Inbox and more!",
  "icons": {
    "48": "images/icon.png"
  },
  "permissions": [
    "*://*/*",
    "storage",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking"
  ],
  "options_ui": {
    "page": "prefs/preferences_page.html"
  },
  "background": {
    "scripts": [
      "lib/constants.js",
      "lib/messenger-background.js",
      "lib/debuglog.js",
      "lib/request.js",
      "lib/sha1.js",
      "lib/prefs.js",
      "lib/module-list.js",
      "lib/dependency-loader.js",
      "lib/http-filter.js",
      "lib/element-list.js",
      "lib/main.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://mail.google.com/mail/*"
      ],
      "exclude_globs": [
        "*view=*"
      ],
      "js": [
        "lib/constants.js",
        "lib/messenger.js",
        "ext/jquery-3.3.1.js",
        "gmail_main.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "css/*",
    "images/*"
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "images/icon16.png",
      "32": "images/icon32.png",
      "64": "images/icon64.png"
    },
    "default_title": "Load Integrated Inbox!",
    "default_popup": "panel.html"
  },
  "sidebar_action": {
    "default_title": "Integrated Inbox settings",
    "default_panel": "prefs/sidebar.html",
    "default_icon": "images/icon.png"
  }
}