Examine source code of Dotteb

{
  "manifest_version": 2,
  "name": "Open Dotteb",
  "version": "2.0.0",
  "description": "A simple button to go to Dotteb site.",
  "icons": {
    "48": "icons/Dico.png",
    "96": "icons/Dico.png"
  },
  "permissions": [
    "tabs"
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "19": "icons/Dico.png",
      "38": "icons/Dico.png"
    },
    "default_title": "Go to Dotteb Site"
  },
  "background": {
    "scripts": [
      "go-to-random-tab.js"
    ],
    "persistent": false
  }
}