pokerogue/public/manifest.webmanifest

{
  "name": "PokéRogue",
  "short_name": "PokéRogue",
  "description": "A Pokémon fangame heavily inspired by the roguelite genre. Battle endlessly while gathering stacking items, exploring many different biomes, and reaching Pokémon stats you never thought possible.",
  "scope": "/",
  "start_url": "/",
  "display": "fullscreen",
  "background_color": "#8c8c8c",
  "theme_color": "#8c8c8c",
  "icons": [
    { "src": "logo128.png", "sizes": "128x128", "type": "image/png" },
    { "src": "logo512.png", "sizes": "512x512", "type": "image/png" }
  ]
}