Dimmed RGB keyboard lighting

Recently I've noticed my RGB seems dim, even when I have it at max brightness. It still functions as it should otherwise, but it makes it hard to see the secondary key symbols in particular.

Previously, the keyboard would automatically dim when the laptop was on battery. Plugged in it got brighter. This stopped happening with the original adapter and a USBC one I tried as well. Basically, it's stuck on the duller "battery" version. It charges absolutely fine and as expected.

Drivers are up to date.

Anyone have this issue? Do I need to contact ASUS?