Examine source code of Instagram Focus

{
  "manifest_version": 2,
  "name": "Instagram Focus",
  "version": "1.0",
  "description": "Oculta elementos de Instagram para mayor concentración (reels, inicio, etc.).",
  "permissions": [
    "tabs",
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.instagram.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{13966982-266c-40d4-80c9-ed722cebdf55}"
    }
  }
}