Examine source code of VietWord Challenge

{
  "manifest_version": 2,
  "name": "VietWord Challenge",
  "version": "1.0",
  "description": "Boost your English vocabulary with this interactive game! Match Vietnamese words related to daily life with their English translations. Perfect for language learners looking to test and expand their skills.",
  "icons": {
    "48": "vietword_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "VietWord Challenge"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{78fed11b-56f0-4a06-bdff-a6e4d00ef851}"
    }
  }
}