Reaction Time Test

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "default_locale": "en",
    "name": "__MSG_extensionName__",
    "browser_specific_settings": {
        "gecko": {
            "id": "[email protected]",
            "strict_min_version": "109.0"
        }
    },
    "version": "0.5.0",
    "description": "__MSG_extensionDescription__",
    "permissions": [
        "storage"
    ],
    "chrome_url_overrides": {
        "newtab": "new-tab\/index.html"
    },
    "icons": {
        "16": "16.png",
        "32": "32.png",
        "48": "48.png",
        "128": "128.png"
    },
    "web_accessible_resources": [
        {
            "resources": [
                "*.js",
                "*.css",
                "*.svg",
                "icon-128.png",
                "icon-32.png"
            ],
            "matches": [
                "*:\/\/*\/*"
            ]
        }
    ]
}