Examine source code of Slow Sub

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  "name": "__MSG_extensionName__",
  "version": "1.2",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "action": {
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      "48": "icons/icon48.png",
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    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "485aca90-6ec8-428d-82a7-902359727026@kartikmudal.com",
      "strict_min_version": "109.0"
    }
  }
}