Examine source code of VirastYaar

{
  "manifest_version": 2,
  "name": "VirastYaar",
  "description": " VirastYaar is a semi-intelligent editing assistant for Persian texts. that is a add-in for Web browers, that performs Persian spell checking(soon), character standardization, Pinglish transliteration, punctuation correction and calendar conversion and ....",
  "version": "0.0.1",
  "icons": {
    "64": "icons/icon.png",
    "96": "icons/icon@2x.png"
  },
  "background": {
    "scripts": [
      "scripts/tools/browser-polyfill.js",
      "scripts/backgrounds/main.js"
    ]
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/tools/browser-polyfill.js",
        "scripts/tools/Virastyaar.js",
        "scripts/contents/main.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "64": "icons/icon.png",
      "96": "icons/icon@2x.png"
    },
    "default_popup": "browserAction/index.html",
    "default_title": "VirastYaar"
  },
  "options_ui": {
    "page": "options/index.html"
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "*://*/*"
  ]
}