Examine source code of Idiom Explorer

{
  "manifest_version": 2,
  "name": "Idiom Explorer",
  "version": "1.0",
  "description": "An interactive browser extension that challenges language learners to complete popular English idioms, boosting vocabulary and cultural fluency.",
  "icons": {
    "48": "explorer-icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Idiom Explorer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9f59b357-6ef4-4ab8-997f-976eb7d3a0a6}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}