Examine source code of Verto

{
  "name": "Verto",
  "description": "Verto is an extension for accessing blockchain enabled distributed applications, or Dapps in your normal Chrome or Firefox browser! ",
  "version": "1.0.1",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "55.0a2",
      "id": "berthony@volentixlabs.com"
    }
  },
  "icons": {
    "16": "icons/favicon-32x32.png",
    "48": "icons/favicon-32x32.png",
    "128": "icons/favicon-32x32.png"
  },
  "browser_action": {
    "default_title": "verto-browser-extension",
    "default_popup": "www/index.html"
  },
  "background": {
    "scripts": [],
    "persistent": true,
    "page": "background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://verto.volentix.io/*",
        "http://localhost:8080/*",
        "<all_urls>"
      ],
      "js": [
        "www/js/bex-content-script.js",
        "js/content-script.js"
      ],
      "css": [
        "css/content-css.css"
      ]
    }
  ],
  "permissions": [
    "https://verto.volentix.io/*",
    "http://localhost:8080/*",
    "storage",
    "idle"
  ],
  "externally_connectable": {
    "matches": [
      "*://localhost/*",
      "*://verto.volentix.io/*"
    ]
  },
  "web_accessible_resources": [
    "www/*",
    "js/*",
    "css/*",
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self';"
}