Examine source code of Cosmic Element Finder

{
  "manifest_version": 3,
  "name": "Cosmic Element Finder",
  "version": "1.0",
  "description": "Discover the building blocks of the universe based on cosmic and real-world clues.",
  "icons": {
    "48": "cosmic_icon.png"
  },
  "action": {
    "default_popup": "index.html",
    "default_title": "Cosmic Element Finder"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{efd8ee7d-8d8f-4b05-b0c2-7fb13b0c344f}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}