It demonstrates the level of control the firmware can have over LEDs. Cheap boards might have a single color setting or only be able to set blocks of keys (i.e.

It demonstrates the level of control the firmware can have over LEDs. Cheap boards might have a single color setting or only be able to set blocks of keys (i.e. alpha vs modifier keys). No one says you have to use unicorn vomit colors or a constantly shifting color pattern. But it does look good in a demo and does a great job of indicating that it's not a solid color. Some people don't like the lighting at all, and that's ok. It's a preference and you control it. If you don't like changing colors or lighting whatsoever, then turn it off. I switch backlight colors based on layout. It helps me remember where less frequently used shortcuts are, and is rather useful to me and I'm sure many others use it in a similar manner. And plenty of people just set a color that matches the color scheme of their desk, office, or computer.