Turn On Limeide GTX300 Keyboard Backlight On Linux

Recently, I ordered a new pair of USB keyboard and mouse for myself — Limeide GRX300 — through a local e-commerce store. Both keyboard and mouse have backlight, which complements my main personal computer — ASUS TUF Gaming A15 laptop. The keyboard of my gaming laptop is perfectly functional, but I use an external keyboard to protect my laptop keyboard from overuse as much as possible, and I do…