Google Maps Route Planner

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "version": "1.2",
    "name": "__MSG_app_name__",
    "description": "__MSG_greeting__",
    "default_locale": "en",
    "permissions": [
        "storage"
    ],
    "action": {
        "default_popup": "popup.html",
        "default_title": "Route Planner"
    },
    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": [
                "content.js"
            ],
            "css": [
                "content.css"
            ]
        }
    ],
    "background": {
        "service_worker": "background.js"
    },
    "icons": {
        "16": "route_icon.png",
        "48": "route_icon.png",
        "128": "route_icon.png"
    }
}