Examine source code of Move tab to new window

{
  "manifest_version": 2,
  "name": "Move tab to new window",
  "version": "1.0",
  "description": "Move tab to new window using Alt+f or Alt+c.",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "commands": {
    "move_tab_to_new_window": {
      "suggested_key": {
        "default": "Alt+F"
      },
      "description": "Move current tab into a new window"
    },
    "move_tab_to_new_window_2": {
      "suggested_key": {
        "default": "Alt+C"
      },
      "description": "Move current tab into a new window"
    }
  },
  "icons": {
    "48": "icons/icon48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{71f9fe17-3316-4c37-8283-0a345cc2a188}"
    }
  }
}