another little idea: would it be possible to make the velocity value send back from midi-cat in button toggle mode configurable like @Curlymorphic did it in his iverson module: Studio 6 + 1, Trigger sequencer for midi controllers, prerelease ? this would make it possibe to structure larger fields of toggle buttons on a supported controller a bit by color …
best wishes and thanks for all your good stuff - hexdump
update: in the midi-cat case it would then only be one slider for the value instead the five in iverson for the different states