Help making a Kobo Aura less bright

Hello, I'm trying to follow a post about an older Kobo and modify the brightness of a newer Kobo Aura. The original author shows a diagram of where a resistor can be attached.

The circuit for the Aura looks similar(-ish). Everything seems slightly moved around and made smaller, but I'm betting that the little ribbon cable is still the LEDs.

My question is about the resistor above it, RA8. It's a 56k resistor that looks to me like it bridges the same place it was suggested to bridge in the original post. Would this make sense from a circuit design perspective? If so could I replace that resistor with a lower value to have the same effect?

Thanks in advance!