Examine source code of Tab-less

{
  "name": "__MSG_appName__",
  "version": "0.6.1resigned1",
  "manifest_version": 2,
  "description": "__MSG_appDescription__",
  "icons": {
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon-16.png",
      "19": "images/icon-19.png",
      "32": "images/icon-32.png",
      "38": "images/icon-38.png",
      "64": "images/icon-64.png"
    },
    "default_title": "__MSG_browserActionTitle__"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c8ded5a1-00d6-407b-ab93-eb0555f97db6}"
    }
  }
}