Examine source code of Genderwender

{
  "manifest_version": 2,
  "name": "Genderwender",
  "version": "1.3",
  "description": "Das beste Mittel im Kampf gegen den Mikrosexismus in der deutschen Sprache.",
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/main.js"
      ]
    }
  ]
}