Examine source code of ProxerExport

{
  "author": "ProxerExport",
  "content_scripts": [
    {
      "matches": [
        "*://proxer.me/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "description": "Exportiere deine Proxer Listen (Anime, Manga und Novel) in eine JSON Datei.",
  "developer": {
    "name": "PryosCode",
    "url": "https://pryoscode.net"
  },
  "homepage_url": "https://github.com/PryosCode/ProxerExport",
  "icons": {
    "30": "logo.png"
  },
  "manifest_version": 2,
  "name": "ProxerExport",
  "version": "2.3.0"
}