Examine source code of Amazon Wish List Total

{
  "name": "Amazon Wish List Total",
  "short_name": "Wish List Total",
  "version": "1.11.1",
  "manifest_version": 3,
  "description": "Keeps a running total of all the items it's seen in the current Amazon wish list.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{41d3acac-3680-4864-861c-48f690c49477}",
      "strict_min_version": "109.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.amazon.ae/gp/registry/*",
        "*://*.amazon.ca/gp/registry/*",
        "*://*.amazon.cn/gp/registry/*",
        "*://*.amazon.co.jp/gp/registry/*",
        "*://*.amazon.co.uk/gp/registry/*",
        "*://*.amazon.com.au/gp/registry/*",
        "*://*.amazon.com.br/gp/registry/*",
        "*://*.amazon.com.mx/gp/registry/*",
        "*://*.amazon.com.tr/gp/registry/*",
        "*://*.amazon.com/gp/registry/*",
        "*://*.amazon.de/gp/registry/*",
        "*://*.amazon.es/gp/registry/*",
        "*://*.amazon.fr/gp/registry/*",
        "*://*.amazon.in/gp/registry/*",
        "*://*.amazon.it/gp/registry/*",
        "*://*.amazon.nl/gp/registry/*",
        "*://*.amazon.se/gp/registry/*",
        "*://*.z.cn/gp/registry/*",
        "*://*.amazon.ae/hz/wishlist/*",
        "*://*.amazon.ca/hz/wishlist/*",
        "*://*.amazon.cn/hz/wishlist/*",
        "*://*.amazon.co.jp/hz/wishlist/*",
        "*://*.amazon.co.uk/hz/wishlist/*",
        "*://*.amazon.com.au/hz/wishlist/*",
        "*://*.amazon.com.br/hz/wishlist/*",
        "*://*.amazon.com.mx/hz/wishlist/*",
        "*://*.amazon.com.tr/hz/wishlist/*",
        "*://*.amazon.com/hz/wishlist/*",
        "*://*.amazon.de/*hz/wishlist/*",
        "*://*.amazon.es/hz/wishlist/*",
        "*://*.amazon.fr/hz/wishlist/*",
        "*://*.amazon.in/hz/wishlist/*",
        "*://*.amazon.it/hz/wishlist/*",
        "*://*.amazon.nl/hz/wishlist/*",
        "*://*.amazon.se/*hz/wishlist/*",
        "*://*.z.cn/hz/wishlist/*",
        "*://*.amazon.ae/gp/aw/ls/*",
        "*://*.amazon.ca/gp/aw/ls/*",
        "*://*.amazon.cn/gp/aw/ls/*",
        "*://*.amazon.co.jp/gp/aw/ls/*",
        "*://*.amazon.co.uk/gp/aw/ls/*",
        "*://*.amazon.com.au/gp/aw/ls/*",
        "*://*.amazon.com.br/gp/aw/ls/*",
        "*://*.amazon.com.mx/gp/aw/ls/*",
        "*://*.amazon.com/gp/aw/ls/*",
        "*://*.amazon.com.tr/gp/aw/ls/*",
        "*://*.amazon.de/gp/aw/ls/*",
        "*://*.amazon.es/gp/aw/ls/*",
        "*://*.amazon.fr/gp/aw/ls/*",
        "*://*.amazon.in/gp/aw/ls/*",
        "*://*.amazon.it/gp/aw/ls/*",
        "*://*.amazon.nl/gp/aw/ls/*",
        "*://*.amazon.se/gp/aw/ls/*",
        "*://*.z.cn/gp/aw/ls/*"
      ],
      "js": [
        "main.js"
      ],
      "css": [
        "main.css"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  }
}