The TM680 has per-key RGB, but the software handles it oddly.
Best practice: If you want a solid color (e.g., all white), use the "Custom" mode and manually select every key. Save this to the board.
Score: 7.2/10
“Does the job for its price – but expect minor frustrations.”
Do not search for "TM680 driver" on Google. You will likely end up with malware-ridden sketchy downloads. Here is the safe path:
Pro tip: The software is a .exe file (Windows only). Mac users, I’m sorry—you will need a virtual machine or a friend with a PC, as there is no official macOS support.