Examine source code of Convert To Popup

{
  "manifest_version": 2,
  "name": "Convert To Popup",
  "version": "1.0",
  "description": "Converts the current tab or link to a popup window",
  "browser_action": {
    "default_icon": "logo.png",
    "default_title": "Convert 2 Popup"
  },
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "activeTab"
  ]
}