Day of the Month

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Day of the Month",
  "description": "Show the day of the current month as an icon in your toolbar.",
  "version": "0.9.4",
  "manifest_version": 3,
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_icon": {
      "16": "/icons/16.png",
      "32": "/icons/32.png",
      "48": "/icons/48.png",
      "128": "/icons/128.png"
    }
  },
  "icons": {
    "16": "/icons/16.png",
    "32": "/icons/32.png",
    "48": "/icons/48.png",
    "128": "/icons/128.png"
  },
  "permissions": [
    "alarms",
    "storage"
  ]
}