Examine source code of RealBrand - Amazon Fake Brand Filter

{
  "manifest_version": 3,
  "name": "RealBrand Filter - Clean Up Amazon Search",
  "short_name": "RealBrand",
  "version": "1.0.3",
  "description": "Filter out unknown brands and clean up Amazon search results. See trust badges, hide sketchy products.",
  "author": "RealBrand Filter",
  "browser_specific_settings": {
    "gecko": {
      "id": "realbrandsearch@firefox.addon",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "developer": {
    "name": "RealBrand Filter",
    "url": "https://realbrandfilter.com"
  },
  "icons": {
    "16": "assets/icons/icon16.png",
    "32": "assets/icons/icon32.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "32": "assets/icons/icon32.png",
      "48": "assets/icons/icon48.png"
    },
    "default_title": "RealBrand Filter"
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "host_permissions": [
    "https://www.amazon.com/*",
    "https://www.amazon.co.uk/*",
    "https://www.amazon.ca/*",
    "https://www.amazon.de/*",
    "https://www.amazon.fr/*",
    "https://www.amazon.es/*",
    "https://www.amazon.it/*",
    "https://www.amazon.co.jp/*",
    "https://www.amazon.in/*",
    "https://www.amazon.com.au/*",
    "https://www.amazon.com.br/*",
    "https://www.amazon.com.mx/*",
    "https://etkcwlepiiltlanstrdc.supabase.co/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.amazon.com/s*",
        "https://www.amazon.co.uk/s*",
        "https://www.amazon.ca/s*",
        "https://www.amazon.de/s*",
        "https://www.amazon.fr/s*",
        "https://www.amazon.es/s*",
        "https://www.amazon.it/s*",
        "https://www.amazon.co.jp/s*",
        "https://www.amazon.in/s*",
        "https://www.amazon.com.au/s*",
        "https://www.amazon.com.br/s*",
        "https://www.amazon.com.mx/s*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "data/brands.json",
        "data/patterns.json",
        "assets/icons/*"
      ],
      "matches": [
        "https://www.amazon.com/*",
        "https://www.amazon.co.uk/*",
        "https://www.amazon.ca/*",
        "https://www.amazon.de/*",
        "https://www.amazon.fr/*",
        "https://www.amazon.es/*",
        "https://www.amazon.it/*",
        "https://www.amazon.co.jp/*",
        "https://www.amazon.in/*",
        "https://www.amazon.com.au/*",
        "https://www.amazon.com.br/*",
        "https://www.amazon.com.mx/*"
      ]
    }
  ]
}