Examine source code of dexonline

{
  "manifest_version": 2,
  "name": "dexonline",
  "description": "Caută pe dexonline.ro - dicționare ale limbii române",
  "version": "1.2",
  "homepage_url": "https://github.com/adakaleh/dexonline-search",
  "icons": {
    "16": "favicon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "64.0"
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "dexonline",
      "keyword": "dex",
      "search_url": "https://dexonline.ro/definitie/{searchTerms}",
      "search_form": "https://dexonline.ro/",
      "suggest_url": "https://dexonline.ro/ajax/searchComplete.php?term={searchTerms}&type=opensearch"
    }
  },
  "commands": {
    "cauta": {
      "suggested_key": {
        "default": "Alt+Shift+D"
      },
      "description": "Caută pe dexonline.ro"
    }
  },
  "permissions": [
    "contextMenus",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}