Examine source code of Phrase Frenzy

{
  "manifest_version": 2,
  "name": "Phrase Frenzy",
  "version": "1.0",
  "description": "An interactive browser extension that challenges users to translate English phrasal verbs into Vietnamese, perfect for language learners aiming to master everyday expressions.",
  "icons": {
    "48": "phrase_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Phrase Frenzy"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{65d6ac89-ff63-45ed-85a4-03359871834d}"
    }
  }
}