Examine source code of DuckDuckGoog

{
  "manifest_version": 2,
  "name": "DuckDuckGoog",
  "version": "1.2",
  "description": "Puts g! on a keyboard shortcut for quicker DDG/Brave ripcord pulling",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://duckduckgo.com/*",
        "https://search.brave.com/*"
      ],
      "js": [
        "duckduckgoog.js"
      ]
    }
  ],
  "commands": {
    "pull-ripcord": {
      "suggested_key": {
        "default": "Ctrl+Comma"
      },
      "description": "Send current search to Google (via g!)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{21d01b25-229f-4ceb-b67c-33735a280377}"
    }
  }
}