London Underground status updates

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "London Underground status updates",
    "short_name": "Tube status",
    "version": "3.0.2",
    "manifest_version": 2,
    "description": "London Underground disruption alerts for the Tube, Overground, TfL Rail & DLR.",
    "icons": {
        "16": "images\/default.png",
        "48": "images\/icon-48.png",
        "128": "images\/icon-128.png"
    },
    "browser_action": {
        "default_icon": "images\/default.png",
        "default_popup": "popup.html"
    },
    "background": {
        "scripts": [
            "config.js",
            "helpers.js",
            "background.js"
        ]
    },
    "permissions": [
        "http:\/\/cloud.tfl.gov.uk\/",
        "http:\/\/api.tfl.gov.uk\/",
        "alarms"
    ]
}