Numerology

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Numerology",
  "short_name": "NumeroCalc",
  "version": "1",
  "description": "Numerology calculator",
  "manifest_version": 2,
  "app": {
    "background": {
      "scripts": [
        "background.js"
      ]
    }
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": []
}