Examine source code of Twitter Media Only Toggle

{
  "manifest_version": 3,
  "name": "Twitter Media Only Toggle",
  "version": "0.7.0",
  "description": "Add a button on twitter home that shows media only tweets.",
  "author": "Ru",
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "https://twitter.com/*",
        "https://x.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "twittermediaonly@ottr.space"
    }
  }
}