Examine source code of YNAB export CSV

{
  "manifest_version": 2,
  "name": "YNAB export CSV",
  "description": "Export transactions table from your bank to YNAB ready format",
  "version": "0.5.4",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "background": {
    "page": "background-page.html"
  },
  "permissions": [
    "menus",
    "activeTab",
    "downloads",
    "storage"
  ],
  "options_ui": {
    "page": "/options/options.html"
  },
  "icons": {
    "32": "resources/YNAB-32.png"
  }
}