Examine source code of Detach Tabs

{
  "manifest_version": 2,
  "name": "__MSG_name__",
  "version": "0.0.6resigned1",
  "description": "__MSG_description__",
  "author": "Staś Małolepszy",
  "homepage_url": "https://github.com/stasm/detach-tabs",
  "permissions": [
    "contextMenus",
    "tabs"
  ],
  "default_locale": "en",
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{412da905-3b37-4906-992b-a3b524d3c6c2}"
    }
  }
}