Construct 3

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Construct 3",
  "description": "Create your own games with Construct. Our tools will empower you to make building 2D games easy no matter your experience level.",
  "version": "3.0.0.1",
  "author": "Scirra Ltd",
  "manifest_version": 2,
  "offline_enabled": true,
  "minimum_chrome_version": "57",
  "requirements": {
    "3D": {
      "features": [
        "webgl"
      ]
    }
  },
  "permissions": [
    "unlimitedStorage"
  ],
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "64": "icon-64.png",
    "128": "icon-128.png",
    "256": "icon-256.png"
  },
  "app": {
    "urls": [
      "https://editor.construct.net/"
    ],
    "launch": {
      "web_url": "https://editor.construct.net/",
      "container": "panel"
    }
  }
}