Vladimir Nikishkin, author of SRFI 203: A Simple Picture Language in the Style of SICP, has asked me to announce last call for this SRFI. He believes that it is ready for finalization, but would like to give reviewers one last chance to submit corrections and feedback before we finalize it.
In particular, I appeal to anyone reading this to try the sample implementation, run the tests, and send feedback about your results.
If you're interested in this SRFI, please give your feedback via the SRFI 203 mailing list before 2020-09-14. After that, assuming that no major revisions are required, we will declare it final. It is important that we get your feedback before 2020-09-14. If that deadline is too soon for you, but you would like to contribute, please let me know so that I can extend the last-call period.