sp-dev-fx-webparts/samples/react-custompropertypanecontrols/.yo-rc.json

{
  "@microsoft/generator-sharepoint": {
    "libraryName": "react-custompropertypanecontrols",
    "libraryId": "21ba0db9-71ef-4f6b-8463-ce29e77e19f4",
    "framework": "react"
  }
}