Old Troff - Training with music

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Old Troff - Training with music",
  "short_name": "Old Troff",
  "version": "1.2.5",
  "manifest_version": 2,
  "description": "Training with music - use https://troff.app instead. A Music player that let you loop, adjust the tempo and create markers!",
  "permissions": [
    "storage",
    {
      "mediaGalleries": [
        "read",
        "allAutoDetected"
      ]
    }
  ],
  "icons": {
    "16": "assets/trofflogo16.png",
    "48": "assets/trofflogo48.png",
    "128": "assets/trofflogo128.png"
  },
  "app": {
    "background": {
      "scripts": [
        "runtime.js"
      ]
    }
  },
  "offline_enabled": true,
  "related_applications": [
    {
      "platform": "webapp",
      "url": "https://troff.app"
    }
  ],
  "prefer_related_applications": true
}