Examine source code of EverRegistry Quick Add

{
  "manifest_version": 2,
  "name": "EverRegistry Quick Add",
  "description": "Add items from any shop to your EverRegistry with one click.",
  "version": "0.1.0",
  "icons": {
    "16": "/icon/16.png",
    "32": "/icon/32.png",
    "48": "/icon/48.png",
    "128": "/icon/128.png"
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "https://everregistry.com.au/*",
    "https://grandiose-hippopotamus-904.convex.cloud/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "quick-add@everregistry.com.au",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "websiteContent"
        ]
      }
    }
  },
  "browser_action": {
    "default_title": "EverRegistry Quick Add",
    "default_popup": "popup.html"
  }
}