Examine source code of v2ex-search

{
  "description": "search from sov2ex",
  "manifest_version": 2,
  "name": "sov2",
  "version": "1.1resigned1",
  "icons": {
    "16": "assets/favicon-16x16.png"
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "sov2ex",
      "search_url": "https://www.sov2ex.com/?q={searchTerms}",
      "keyword": "v2",
      "is_default": false
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ae7fd6fd-4cf5-4be5-aa5d-c52690edd78f}"
    }
  }
}