Examine source code of PulseMath

{
  "manifest_version": 3,
  "name": "PulseMath",
  "version": "1.0",
  "description": "Challenge your brain with fast-paced mental math puzzles in a clean, modern popup. Perfect for quick brain training during breaks.",
  "icons": {
    "48": "math_icon.png"
  },
  "action": {
    "default_popup": "index.html",
    "default_title": "PulseMath"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{80cf72a9-3c91-4603-b699-44b102617722}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}