Timey - Countdown timer

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_EXT_NAME__",
    "description": "__MSG_EXT_DESCRIPTION__",
    "version": "1.0.5",
    "manifest_version": 3,
    "minimum_chrome_version": "109",
    "default_locale": "en",
    "icons": {
        "16": ".\/images\/icon16.png",
        "24": ".\/images\/icon24.png",
        "32": ".\/images\/icon32.png",
        "48": ".\/images\/icon48.png",
        "128": ".\/images\/icon128.png"
    },
    "background": {
        "service_worker": "background.js",
        "type": "module"
    },
    "permissions": [
        "alarms",
        "storage",
        "offscreen"
    ],
    "optional_permissions": [
        "notifications"
    ],
    "action": {
        "default_title": "__MSG_EXT_NAME_SHORT__",
        "default_popup": ".\/html\/popup.html"
    },
    "commands": {
        "_execute_action": {
            "suggested_key": {
                "default": "Ctrl+Shift+Y",
                "mac": "Command+Shift+Y"
            }
        }
    }
}