Examine source code of The Navigator

{
  "manifest_version": 3,
  "name": "The Navigator",
  "version": "1.0",
  "description": "Order eligibility, profitability, and one-click checkout functionality for warehouse precious metals",
  "browser_specific_settings": {
    "gecko": {
      "id": "navigator-costco@thenavigator.cc",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://www.costco.com/*",
    "https://ecom-api.costco.com/*",
    "https://api.thenavigator.cc/*"
  ],
  "background": {
    "scripts": [
      "src/background/worker.js"
    ]
  },
  "action": {
    "default_title": "Open The Navigator",
    "default_icon": {
      "32": "src/assets/icon-32.png",
      "128": "src/assets/icon-128.png"
    }
  },
  "icons": {
    "32": "src/assets/icon-32.png",
    "128": "src/assets/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.costco.com/*"
      ],
      "run_at": "document_idle",
      "js": [
        "src/content/styles.js",
        "src/lib/costco-api.js",
        "src/content/pricing.js",
        "src/content/eligibility.js",
        "src/content/checkout.js",
        "src/content/inject.js"
      ]
    },
    {
      "matches": [
        "https://thenavigator.cc/*",
        "https://dcb.thenavigator.cc/*"
      ],
      "run_at": "document_idle",
      "js": [
        "src/content/sync-tiers.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "src/assets/*"
      ],
      "matches": [
        "https://www.costco.com/*"
      ]
    }
  ]
}