Examine source code of BuyerGuard

{
  "manifest_version": 3,
  "name": "BuyerGuard",
  "version": "1.0.0",
  "description": "Rate and review eBay buyers. Crowdsourced flairs warn sellers about problematic buyers.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://buyerguard-api.romanbronze.com/*",
    "https://www.ebay.com/*",
    "https://www.ebay.co.uk/*",
    "https://www.ebay.de/*",
    "https://www.ebay.com.au/*",
    "https://www.ebay.ca/*",
    "https://www.ebay.fr/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    },
    "default_title": "BuyerGuard"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.ebay.com/*",
        "https://www.ebay.co.uk/*",
        "https://www.ebay.de/*",
        "https://www.ebay.com.au/*",
        "https://www.ebay.ca/*",
        "https://www.ebay.fr/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "buyerguard@buyerguard.com",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "privacy_policy_url": "https://buyerguard-api.romanbronze.com/privacy",
        "required": [
          "personallyIdentifyingInfo",
          "authenticationInfo",
          "websiteActivity"
        ],
        "optional": []
      }
    }
  }
}