Examine source code of map viewer

{
  "manifest_version": 3,
  "name": "Map Rando Seed Verifier",
  "version": "1.2.1",
  "description": "Automatically verify that your Map Rando seeds are using the correct Race Mode settings.",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "images/*.png",
        "presets/*.json"
      ]
    }
  ],
  "content_scripts": [
    {
      "js": [
        "scripts/config.js",
        "scripts/content.js"
      ],
      "css": [
        "scripts/settings_styles.css"
      ],
      "matches": [
        "https://maprando.com/seed/*",
        "https://dev.maprando.com/seed/*"
      ],
      "exclude_matches": [
        "https://maprando.com/seed/*/data/*",
        "https://dev.maprando.com/seed/*/data/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2764c0b0-6488-4a07-8faa-fd1e20c9796f}",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}