Timerアプリ

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Timerアプリ",
  "description": "時間になったら通知が来ます",
  "version": "1.0",
  "manifest_version": 3,
  "permissions": [
    "notifications",
    "storage"
  ],
  "icons": {
    "48": "img/icon.png",
    "64": "img/icon2.png",
    "128": "img/icon3.png"
  },
  "action": {
    "default_title": "Timerアプリ",
    "default_popup": "index.html",
    "default_icon": "img/icon.png"
  },
  "background": {
    "service_worker": "background/background_timer.js"
  }
}