Examine source code of C1 Offers Sorter

{
  "manifest_version": 3,
  "name": "C1 Offers Sorter",
  "version": "2.2.0",
  "description": "A small utility extension used to load and sort all C1 offers by mileage or merchant name.",
  "browser_specific_settings": {
    "gecko": {
      "id": "c1-offers-sorter@noritheshibadev.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "action": {
    "default_popup": "index.html",
    "default_title": "C1 Offers Sorter"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://capitaloneoffers.com/feed*",
        "https://capitaloneoffers.com/c1-offers*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "injected-scripts/pagination.js"
      ],
      "matches": [
        "https://capitaloneoffers.com/*"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "homepage_url": "https://github.com/noritheshibadev/c1offersort",
  "developer": {
    "name": "noritheshibadev",
    "url": "https://github.com/noritheshibadev/c1offersort"
  }
}