Looking to get the reactive layer working with your Apex 3 or Apex 3 TKL?
Unfortunately, the reactive layer will only work with keyboards that allow each key to be set to a specific color; these include the Apex 5, 7, and Pro series. With the Apex 3 full-size and TKL, they are Zone RGB, as shown below.
This means the Reactive layer would not work with the Apex 3 keyboard.
GLHF!