Examine source code of Postman Interceptor

{
  "name": "Postman Interceptor",
  "description": "Capture requests from any website and send them to Postman Client.",
  "icons": {
    "16": "assets/interceptor_16x16.png",
    "32": "assets/interceptor_32x32.png",
    "48": "assets/interceptor_48x48.png",
    "128": "assets/interceptor_128x128.png"
  },
  "action": {
    "default_title": "Postman Interceptor",
    "default_icon": "assets/interceptor_48x48.png",
    "default_popup": "html/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.postman-beta.co/*",
        "*://*.postman-stage.co/*",
        "*://*.postman-preview.co/*",
        "*://*.postman.co/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "type": "module"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "webRequest",
    "nativeMessaging",
    "storage",
    "cookies",
    "scripting"
  ],
  "optional_permissions": [
    "webRequest"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a81256d7-babd-4185-91f6-95580215661d}"
    }
  },
  "manifest_version": 3,
  "version": "3.2.1"
}