manifest.json

{
    "name": "CrossCanvas Diagram Editor",
    "short_name": "CrossCanvas",
    "description": "Draw network diagrams in the browser - stencils, zones, inventory import, Visio/Gliffy/draw.io import, themed exports. No install, no account, no server.",
    "start_url": "./index.html",
    "scope": "./",
    "display": "standalone",
    "background_color": "#262a33",
    "theme_color": "#262a33",
    "icons": [
        { "src": "icon-192.png", "sizes": "192x192", "type": "image/png" },
        { "src": "icon-512.png", "sizes": "512x512", "type": "image/png" },
        { "src": "favicon.svg", "sizes": "any", "type": "image/svg+xml" }
    ],
    "file_handlers": [
        {
            "action": "./index.html",
            "accept": {
                "application/json": [".xcanvas", ".netdraw"]
            }
        }
    ]
}