Examine source code of Idiom Odyssey

{
  "manifest_version": 2,
  "name": "Idiom Odyssey",
  "version": "1.0",
  "description": "Embark on a daily linguistic journey. Unscramble essential English idioms to sharpen your conversational skills and unlock fluid comprehension.",
  "icons": {
    "48": "odyssey-compass.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Idiom Odyssey"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1adc5f43-ba67-4326-843e-7360ec9d7ebd}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}