Examine source code of Kalandras

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "{fd8d2c63-72db-ed00-6fa5-ea924efdc439}",
      "strict_min_version": "42.0"
    }
  },
  "name": "Kalandras",
  "description": "Soit au courant que Kalandras est en live !",
  "version": "1.0.3resigned1",
  "permissions": [
    "notifications"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "64": "img/icon_64.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  }
}