Examine source code of vimhelp.org Search

{
  "manifest_version": 2,
  "name": "__MSG_extension_name__",
  "short_name": "__MSG_extension_short_name__",
  "description": "__MSG_extension_description__",
  "version": "2.0.0",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "63.0",
      "id": "{be038dd9-931d-49f2-aa65-b47a19ae59e2}"
    }
  },
  "icons": {
    "16": "/ico/ico-016.png",
    "24": "/ico/ico-024.png",
    "32": "/ico/ico-032.png",
    "48": "/ico/ico-048.png",
    "64": "/ico/ico-064.png",
    "96": "/ico/ico-096.png",
    "128": "/ico/ico-128.png",
    "256": "/ico/ico-256.png"
  },
  "background": {
    "page": "/bg/bg-main.html"
  },
  "options_ui": {
    "page": "/options/opt-main.html",
    "browser_style": false
  },
  "omnibox": {
    "keyword": "v"
  },
  "permissions": [
    "tabs",
    "search",
    "alarms",
    "storage",
    "https://vimhelp.org/"
  ]
}