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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_title__",
  "version": "1.4.4",
  "description": "__MSG_description__",
  "default_locale": "en",
  "action": {
    "default_popup": "index.html",
    "default_icon": "icons/app_38.png"
  },
  "options_page": "settings.html",
  "icons": {
    "16": "icons/app_16.png",
    "48": "icons/app_48.png",
    "128": "icons/app_128.png"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "service_worker": "service.js"
  }
}