### Search before asking - [x] I have searched the X-AnyLabeling [Docs](https://github.com/CVHub520/X-AnyLabeling/tree/main/docs) and [issues](https://github.com/CVHub520/X-AnyLabeling/issues) and found no similar questions. ### Question Does X-AnyLabeling allow spline curve in polygons? If yes then how to implement it ### Additional _No response_