Examine source code of @Home

{
  "manifest_version": 2,
  "name": "@Home",
  "short_name": "@Home",
  "description": "Brings a new level of customization to your New Tab page, making it look and feel as if it was made just for you.",
  "applications": {
    "gecko": {
      "id": "extension@athome.io",
      "strict_min_version": "60.0"
    }
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "icons": {
    "16": "img/icons/favicon-16x16.png",
    "32": "img/icons/favicon-32x32.png"
  },
  "permissions": [
    "storage"
  ],
  "version": "0.8.8"
}