Examine source code of weird-QR

{
  "manifest_version": 2,
  "name": "weird-QR",
  "description": "a simple and light weight QR code generator and tabs sender",
  "version": "1.2resigned1",
  "author": "~weirdcreators~",
  "content_scripts": [
    {
      "js": [
        "jquery.min.js",
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "web_accessible_resources": [
    "style.css"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "images/logo.png",
    "default_title": "left click: options | right click: spam detect",
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab",
    "notifications",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c9003598-8e1c-4c53-ad44-b2e0e54c5dbd}"
    }
  }
}