Examine source code of App for Google™ Paint

{
  "version": "0.1.1resigned1",
  "manifest_version": 2,
  "name": "App for Google™ Paint",
  "short_name": "appforgooglepaint",
  "web_accessible_resources": [
    "data/icons/*"
  ],
  "background": {
    "page": "lib/chrome/background.html"
  },
  "homepage_url": "http://mybrowseraddon.com/app-for-paint.html",
  "permissions": [
    "storage",
    "https://docs.google.com/drawings/*"
  ],
  "description": "Easily open and use google paint while you browse, with just one click",
  "browser_action": {
    "default_icon": "data/icons/32.png",
    "default_title": "App for Google™ Paint"
  },
  "content_scripts": [
    {
      "matches": [
        "*://docs.google.com/drawings/*"
      ],
      "css": [
        "data/panel/index.css"
      ],
      "js": [
        "data/panel/index.js"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ],
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{451739f5-bffa-4772-9616-f902751d63dc}"
    }
  }
}