Examine source code of Amazon Desponsor

{
  "manifest_version": 3,
  "name": "Amazon Desponsor",
  "description": "Hide or highlight sponsored products in Amazon search results.",
  "version": "0.1.0",
  "short_name": "Desponsor",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "amazon-desponsor@josephembrey.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Amazon Desponsor",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.amazon.ae/*",
        "*://www.amazon.ca/*",
        "*://www.amazon.cn/*",
        "*://www.amazon.co.jp/*",
        "*://www.amazon.co.uk/*",
        "*://www.amazon.co.za/*",
        "*://www.amazon.com.au/*",
        "*://www.amazon.com.be/*",
        "*://www.amazon.com.br/*",
        "*://www.amazon.com.mx/*",
        "*://www.amazon.com.tr/*",
        "*://www.amazon.com/*",
        "*://www.amazon.de/*",
        "*://www.amazon.eg/*",
        "*://www.amazon.es/*",
        "*://www.amazon.fr/*",
        "*://www.amazon.in/*",
        "*://www.amazon.it/*",
        "*://www.amazon.nl/*",
        "*://www.amazon.pl/*",
        "*://www.amazon.sa/*",
        "*://www.amazon.se/*",
        "*://www.amazon.sg/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}