Examine source code of MerchCopyPaste

{
  "manifest_version": 2,
  "name": "MerchCopyPaste",
  "version": "1.4b",
  "developer": {
    "name": "Juergen Arno Weiss",
    "url": "http://merchcp.hypemedia.de"
  },
  "content_scripts": [
    {
      "matches": [
        "https://merch.amazon.com/dashboard"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "merchcp.js"
    ]
  }
}