Examine source code of Wiktionary Suggestions

{
  "manifest_version": 2,
  "name": "Wiktionary Suggestions by Language",
  "version": "1.0.0",
  "description": "Allows user to easily go to a Wiktionary entry in a specific language.",
  "icons": {
    "48": "icons/icon48.ico",
    "96": "icons/icon96.ico"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "omnibox": {
    "keyword": "w"
  },
  "permissions": [
    "*://en.wiktionary.org/*"
  ]
}