Examine source code of Web Scraper

{
  "name": "__MSG_app_name__",
  "version": "1.2.2",
  "default_locale": "en",
  "description": "__MSG_app_desc__",
  "permissions": [
    "<all_urls>",
    "notifications",
    "alarms",
    "storage",
    "management",
    "idle",
    "tabs",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "js/browser-polyfill.min.js",
      "background.js",
      "js/jquery.min.js",
      "js/jQuery.ajax.arraybuffer.js",
      "js/rss-parser.js",
      "js/htmlencode.js",
      "js/moment-with-locales.js",
      "js/common.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "js/browser-polyfill.min.js",
        "js/feed_finder.js",
        "doc_start.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "js/browser-polyfill.min.js",
        "js/feed_finder.js",
        "doc_idle.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/rss-16.png",
      "32": "images/rss-32.png",
      "48": "images/rss-48.png",
      "128": "images/rss-128.png"
    }
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Shift+E",
        "mac": "Command+Shift+E"
      },
      "description": "Popup toggle"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "images/rss-16.png",
    "32": "images/rss-32.png",
    "48": "images/rss-48.png",
    "128": "images/rss-128.png"
  },
  "manifest_version": 2
}