Examine source code of CustomTagLedger

{
  "manifest_version": 3,
  "name": "CustomTagLedger",
  "version": "1.0.0",
  "description": "Audit custom element tags, registration state, upgrade timing, shadow roots, and unresolved web component names.",
  "icons": {
    "48": "tagicons/icon-48.png",
    "96": "tagicons/icon-96.png",
    "128": "tagicons/icon-128.png"
  },
  "action": {
    "default_title": "CustomTagLedger",
    "default_popup": "ledger/ui.html"
  },
  "permissions": [
    "activeTab",
    "scripting",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4524009c-e1cd-4e11-9b3f-ebba2fc40b8a}",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}