I've looked at various guides and tools for adjusting the keyboard backlight brightness of my Asus G531GT laptop on Linux. All (e.g. https://github.com/iamweird/asus-kbd-backlight) seem to work by editing a configuration file for backlight brightness. The most common configuration folder is /sys/class/leds/asus::kbd_backlight.
However on my machine (with Pop OS/Ubuntu 19.04) I do not have such a folder. I do have /sys/class/leds with other subfolders, and I can use them to set the brightness of other leds on my machine, like the Caps Lock LED.
Does anyone know how to fix this?