On the tail of last week’s release of Marvin.JsonPatch 1.1, I just released a new version of Marvin.Json.Dynamic (1.1). It adds support for case transforming for untyped JsonPatchDocuments (see https://www.kevindockx.com/marvin-jsonpatch-1-1-released/ for some details on how this was implemented for typed JsonPatchDocuments):
JsonPatchDocument patchDoc = new JsonPatchDocument(CaseTransformType.CamelCase);
You can find it on NuGet. If you encounter any issues (or want to help out), one address: GitHub.
Happy coding! 🙂