manifest.json

{
  "name": "Glass RPN Calculator",
  "short_name": "Glass RPN",
  "lang": "en-US",
  "start_url": "index.html",
  "display": "standalone",
  "background_color": "#4667A2",
  "theme_color": "#4667A2",
  "description": "An RPN calculator.",
  "icons": [{
    "src": "resources/images/icons/16.png",
    "sizes": "16x16",
    "type": "image/png"
  },{
    "src": "resources/images/icons/120.png",
    "sizes": "120x120",
    "type": "image/png"
  }, {
    "src": "resources/images/icons/128.png",
    "sizes": "128x128",
    "type": "image/png"
  }, {
    "src": "resources/images/icons/144.png",
    "sizes": "144x144",
    "type": "image/png"
  }, {
    "src": "resources/images/icons/152.png",
    "sizes": "152x152",
    "type": "image/png"
  }, {
    "src": "resources/images/icons/196.png",
    "sizes": "196x196",
    "type": "image/png",
    "purpose": "any maskable"
  }, {
    "src": "resources/images/icons/256.png",
    "sizes": "256x256",
    "type": "image/png"
  }, {
    "src": "resources/images/icons/512.png",
    "sizes": "512x512",
    "type": "image/png"
  }],
  "related_applications": [{
    "platform": "play",
    "url": "https://calc.innershell.ca"
  }]
}