MetroBeat: A Metronome keeps you in Beat!

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "MetroBeat: A Metronome keeps you in Beat!",
    "description": "Let musicians stay in time while rehearsing and learning during daily practise.",
    "version": "1.0.0",
    "manifest_version": 3,
    "background": {
        "service_worker": "background.js"
    },
    "author": {
        "email": "[email protected]"
    },
    "permissions": [
        "storage",
        "activeTab"
    ],
    "commands": {
        "play_pause": {
            "suggested_key": {
                "default": "Alt+Space"
            },
            "description": "Inject a script on the page"
        }
    },
    "action": {
        "default_popup": "popup.html",
        "default_icon": {
            "16": "\/images\/icon_16.png",
            "32": "\/images\/icon_32.png",
            "48": "\/images\/icon_48.png",
            "128": "\/images\/icon_128.png"
        }
    },
    "icons": {
        "16": "\/images\/icon_16.png",
        "32": "\/images\/icon_32.png",
        "48": "\/images\/icon_48.png",
        "128": "\/images\/icon_128.png"
    },
    "options_page": "options.html"
}