Examine source code of The Archiver

{
  "name": "The Archiver",
  "description": "Save Page, Image & Link Urls to the Wayback Machine, Archive.is",
  "version": "1.2.2",
  "permissions": [
    "contextMenus",
    "storage"
  ],
  "background": {
    "scripts": [
      "theArchiver.js"
    ]
  },
  "options_page": "options/options.html",
  "icons": {
    "16": "images/theArchiver16.png",
    "48": "images/theArchiver48.png",
    "128": "images/theArchiver128.png"
  },
  "manifest_version": 2
}