If the Korg nanoKontrol2 midi controller is not working with Catalina, Big Sur or Monterey OS and you are using an Intel or M1 Mac, you will need to take a couple more steps outlined on Korg's website to update it and run an uninstaller.
You will also need the most recent Korg Kontrol Editor, and you can get that here.
After you've run the uninstaller, you'll be able to set up the lights, if you'd like, just like in the video below. Make sure you have set the button type to Alternating Value instead of Press / Release or you may run into an issue with a double press.