I e-mailed the maintainer of the backend, but haven't heard anything back, I thought I'd say something here too.
The ColorPage-SF600 is supported by the gt68xx backend. It's just a repackage of the OpticSlim M12. It uses the same firmware. I was able to get it working simply by adding the PID and VID to the config file, setting the override to the M12, and supply the firmware. The version I tested with was v1.0.17. -- Ryan
