Examine source code of Viet Phrase Flash Trainer

{
  "manifest_version": 2,
  "name": "Viet Phrase Flash Trainer",
  "version": "1.0",
  "description": "An interactive popup flashcard tool to help you quickly memorize and review essential everyday Vietnamese phrases with English translations. Clean, fast, and perfect for daily practice.",
  "icons": {
    "48": "phrase_flash_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Viet Phrase Flash Trainer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{513af2c3-31ef-441e-9ed9-67bbf1da4e73}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}