Examine source code of Text Translator Popup

{
  "manifest_version": 2,
  "name": "Text Translator Popup",
  "version": "1.0",
  "description": "Translate selected text using MyMemory API, supports Russian and English language.",
  "permissions": [
    "activeTab",
    "tabs",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b2ea4b2e-113f-44e5-bfc0-1f94ac60f027}",
      "strict_min_version": "115.0"
    }
  },
  "icons": {
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "64": "icon64.png"
    }
  }
}