Missing bindings to lwt-graphics?

Hello, I am currently trying to reproduce this tutorial on writing a simple in-browser application using js_of_ocaml, but compilation fails when trying to find the `js_of_ocaml-lwt.graphics` library.

It is seems that in the latest release (6.3.2 at the time of writing), the bindings are no more accessible, and the changelog does not state much. The [Ocsigen website](Js_of_ocaml) still mention `js_of_ocaml-lwt.graphics` so I would assume it is still available.

Would someone more knowledgeable tell me if using Graphics_js is still an option? If not, what would be the best course of action?

Do you have graphics installed ? If no, just opam install graphics, it should recompile js_of_ocaml-lwt with graphics support.