Examine source code of Pokémon Price Analyzer

{
  "manifest_version": 3,
  "name": "TCG Card Ebay Pokemon Price Analyzer",
  "version": "1.7.3",
  "description": "Compare Pokémon card prices faster and avoid overpaying",
  "permissions": [
    "activeTab",
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "*://*.ebay.at/*",
    "*://*.ebay.be/*",
    "*://*.ebay.ch/*",
    "*://*.ebay.co.uk/*",
    "*://*.ebay.de/*",
    "*://*.ebay.es/*",
    "*://*.ebay.fr/*",
    "*://*.ebay.ie/*",
    "*://*.ebay.it/*",
    "*://*.ebay.nl/*",
    "*://*.ebay.pl/*",
    "*://*.ebay.com/*",
    "*://*.catawiki.com/*",
    "*://*.goldin.co/*",
    "*://goldin.co/*",
    "*://*.fanaticscollect.com/*",
    "*://fanaticscollect.com/*",
    "*://vinted.fr/*",
    "*://www.vinted.fr/*",
    "*://*.vinted.fr/*",
    "https://tcgpeek.com/*",
    "https://www.tcgpeek.com/*",
    "https://*.vercel.app/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Pokémon Price Analyzer",
    "default_icon": {
      "16": "icons/icon-16.png",
      "19": "icons/icon-19.png",
      "32": "icons/icon-32.png",
      "38": "icons/icon-38.png",
      "48": "icons/icon-48.png",
      "64": "icons/icon-64.png",
      "96": "icons/icon-96.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "poke-extension@tcgpeek.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "personallyIdentifyingInfo",
          "authenticationInfo",
          "browsingActivity",
          "websiteContent",
          "websiteActivity"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ebay.at/*",
        "*://*.ebay.be/*",
        "*://*.ebay.ch/*",
        "*://*.ebay.co.uk/*",
        "*://*.ebay.de/*",
        "*://*.ebay.es/*",
        "*://*.ebay.fr/*",
        "*://*.ebay.ie/*",
        "*://*.ebay.it/*",
        "*://*.ebay.nl/*",
        "*://*.ebay.pl/*",
        "*://*.ebay.com/*",
        "*://*.catawiki.com/*",
        "*://*.goldin.co/*",
        "*://goldin.co/*",
        "*://*.fanaticscollect.com/*",
        "*://fanaticscollect.com/*",
        "*://vinted.fr/*",
        "*://www.vinted.fr/*",
        "*://*.vinted.fr/*"
      ],
      "js": [
        "extension-env.js",
        "extension-api.js",
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}