Microthemer 5.6 beta is ready for testers to try out. This update supports editing styles added via the GUI fields using the custom code editor, and vice versa.
It’s not ready for use on live sites yet as it will no doubt have some glitches. But if you can help me find any outstanding problems I will promptly roll out fixes and be very grateful to you! I’m keen to get this version ready for production ASAP and then move onto adding support for many new CSS properties.