Examine source code of Media Player for YouTube™

{
  "version": "0.3.7resigned1",
  "manifest_version": 2,
  "short_name": "iyplayer",
  "name": "Media Player for YouTube™",
  "permissions": [
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "page": "lib/chrome/background.html"
  },
  "description": "Simple, yet elegant player for YouTube",
  "options_ui": {
    "chrome_style": true,
    "page": "data/options/options.html"
  },
  "browser_action": {
    "default_icon": "data/icon16.png",
    "default_popup": "data/popup/popup.html",
    "default_title": "Media Player for YouTube™"
  },
  "content_scripts": [
    {
      "exclude_matches": [
        "http://www.youtube.com/embed/*",
        "https://www.youtube.com/embed/*"
      ],
      "matches": [
        "http://www.youtube.com/*",
        "https://www.youtube.com/*"
      ],
      "js": [
        "data/content_script/inject.js"
      ],
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "data/icon16.png",
    "32": "data/icon32.png",
    "48": "data/icon48.png",
    "64": "data/icon64.png",
    "128": "data/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jid1-dgnICqQgv2AUZw@jetpack"
    }
  }
}