Examine source code of Ghostify | Hide Seen, Typing & Story Views

{
  "manifest_version": 3,
  "name": "Ghostify | Hide Seen, Typing & Story Views",
  "version": "2.0.6",
  "description": "Control your visibility on Instagram & Facebook/Messenger. Hide typing indicators, read receipts, and story views.",
  "author": "Hendrizzzz",
  "permissions": [
    "storage",
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "https://*.instagram.com/*",
    "https://*.messenger.com/*",
    "https://*.facebook.com/*",
    "https://www.fbsbx.com/*",
    "https://ghostify-extension.vercel.app/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Ghostify - Privacy Controls"
  },
  "icons": {
    "16": "icons/icon16.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.instagram.com/*",
        "https://*.messenger.com/*",
        "https://*.facebook.com/*",
        "https://www.fbsbx.com/*"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_start",
      "world": "ISOLATED",
      "all_frames": true,
      "match_origin_as_fallback": true
    },
    {
      "matches": [
        "https://*.messenger.com/*",
        "https://*.facebook.com/*",
        "https://www.fbsbx.com/*"
      ],
      "js": [
        "js/messenger_patch.js"
      ],
      "run_at": "document_start",
      "world": "MAIN",
      "all_frames": true,
      "match_origin_as_fallback": true
    },
    {
      "matches": [
        "https://*.instagram.com/*",
        "https://*.messenger.com/*",
        "https://*.facebook.com/*",
        "https://www.fbsbx.com/*"
      ],
      "js": [
        "js/ghost.js"
      ],
      "run_at": "document_start",
      "world": "MAIN",
      "all_frames": true,
      "match_origin_as_fallback": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "config/patterns.json"
      ],
      "matches": [
        "https://*.instagram.com/*",
        "https://*.messenger.com/*",
        "https://*.facebook.com/*",
        "https://www.fbsbx.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ghostify@ghostify-extension.vercel.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}