{
    "short_name": "",
    "name": "",
    "icons": [{
    "src": "img/dev1.jpg",
    "type": "image/jpg",
    "sizes": "192x192"
    }],
    "start_url": "/?utm_source=homescreen",
    "background_color": "#fafafa",
    "theme_color": "#fafafa"
}