Cryptocurrency Exchange Rate

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "version": "0.2.0",
    "name": "Cryptocurrency Exchange Rate",
    "description": "Real-time exchange rate for multiple cryptocurrencies such as Bitcoin (BTC), Litecoin (LTC), DogeCoin (DOGE) and Ethereum (ETH)",
    "icons": {
        "16": "data\/icons\/16.png",
        "32": "data\/icons\/32.png",
        "48": "data\/icons\/48.png",
        "64": "data\/icons\/64.png",
        "128": "data\/icons\/128.png",
        "256": "data\/icons\/256.png",
        "512": "data\/icons\/512.png"
    },
    "permissions": [
        "storage",
        "alarms",
        "contextMenus"
    ],
    "host_permissions": [
        "https:\/\/api.cryptonator.com\/"
    ],
    "background": {
        "service_worker": "worker.js"
    },
    "action": {
        "default_title": "Loading..."
    },
    "homepage_url": "https:\/\/add0n.com\/exchange-rate.html",
    "options_ui": {
        "page": "data\/options\/index.html"
    },
    "commands": {
        "_execute_action": {
            "description": "Press the action button"
        }
    }
}