Examine source code of TuneYou Radio

{
  "description": "Listen to your favorite radio stations online from all over the world. Explore all stations by location or genre according to your mood.",
  "manifest_version": 2,
  "name": "TuneYou Radio",
  "version": "1.0.3resigned1",
  "browser_action": {
    "browser_style": true,
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/TuneYou160.png",
      "32": "icons/TuneYou160.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0deb2a08-06a1-469f-842a-c8ee0f3c7107}"
    }
  }
}