Countdown Timer

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Countdown Timer",
    "description": "Minimal countdown app \u2014 track time and stay productive anywhere.",
    "version": "1.2.0",
    "action": {
        "default_title": "Countdown Timer",
        "default_popup": "popup.html",
        "default_icon": {
            "16": "icons\/icon16.png",
            "48": "icons\/icon48.png",
            "128": "icons\/icon128.png"
        }
    },
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "permissions": [
        "alarms"
    ],
    "background": {
        "service_worker": "service_worker.js"
    }
}