Examine source code of Disney Subtitle

{
  "manifest_version": 2,
  "name": "Disney Subtitle",
  "version": "1.0",
  "description": "Fixing Disney+ Hotstar Subtitle",
  "content_scripts": [
    {
      "matches": [
        "*://*.hotstar.com/*"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3efc10f9-a1ed-4354-88fb-0c449604320f}"
    }
  }
}