My keyboard had some undocumented feature reports, so I mapped them out and made a little config app for it.

The AULA F75 shows up as two USB devices: a normal keyboard and a vendor interface that the Windows driver uses for RGB/remap stuff. I reverse engineered the vendor side (520 byte SET/GET feature reports, live config region at a fixed address) and put a web app on top of it. Fun detail: to find which config byte stores the current effect I dumped...