Examine source code of Zonalizer

{
  "manifest_version": 3,
  "author": "Cercose LLC <contact@cercose.com>",
  "name": "__MSG_ext_name__",
  "description": "__MSG_ext_description__",
  "options_ui": {
    "page": "src/pages/options/index.html"
  },
  "action": {
    "default_popup": "src/pages/popup/index.html",
    "default_icon": {
      "32": "icon/32.png",
      "64": "icon/64.png"
    }
  },
  "icons": {
    "128": "icon/128.png",
    "256": "icon/256.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "content_scripts": [
    {
      "js": [
        "assets/index.tsx-loader-B6XL_GS6.js"
      ],
      "matches": [
        "*://*.amazon.ca/*",
        "*://*.amazon.co.jp/*",
        "*://*.amazon.co.uk/*",
        "*://*.amazon.com.au/*",
        "*://*.amazon.com.br/*",
        "*://*.amazon.com.mx/*",
        "*://*.amazon.com.tr/*",
        "*://*.amazon.com/*",
        "*://*.amazon.de/*",
        "*://*.amazon.es/*",
        "*://*.amazon.fr/*",
        "*://*.amazon.in/*",
        "*://*.amazon.it/*",
        "*://*.amazon.nl/*",
        "*://*.amzn.com/*",
        "*://*.zonalizer.com/*"
      ],
      "css": [
        "contentStyle.css",
        "assets/index-DJ9n4qof.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "*://*.amazon.ca/*",
        "*://*.amazon.co.jp/*",
        "*://*.amazon.co.uk/*",
        "*://*.amazon.com.au/*",
        "*://*.amazon.com.br/*",
        "*://*.amazon.com.mx/*",
        "*://*.amazon.com.tr/*",
        "*://*.amazon.com/*",
        "*://*.amazon.de/*",
        "*://*.amazon.es/*",
        "*://*.amazon.fr/*",
        "*://*.amazon.in/*",
        "*://*.amazon.it/*",
        "*://*.amazon.nl/*",
        "*://*.amzn.com/*",
        "*://*.zonalizer.com/*"
      ],
      "resources": [
        "contentStyle.css",
        "icon/128.png",
        "icon/32.png",
        "assets/aws-icon-DVF4psmf.png",
        "assets/client-Dan2ReXE.js",
        "assets/index-BFvcq_fc.js",
        "assets/index.tsx-1ZRtiVVu.js"
      ]
    }
  ],
  "version": "1.0.2",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "zonalizer-extension@zonalizer.com"
    }
  },
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  }
}