Hi Daniel,
Thank you for reminding me. Unfortunately I did not have time to work on Cuelux at all in the past few months...
(Its a shame, I really enjoy working on it!)
The item is still on the list once I have time.
I hope Cuelux is running well for you apart from the stack button colour feedback! Let me know if there is anything else you run into.
Greetings,
Bootsy