Relit A0 is a led strip of 12 RGB LEDs (Like NeoPixels) that work well with Recore A7.
Compiling Klipper with support for Neopixels
[neopixel relit] pin: PB3 chain_count: 12
set_led led=relit RED=1 GREEN=1 BLUE=1 TRANSMIT=1
Running the light at full power with all LEDs on can cause too much power to be drawn from the 5 V step down converter. Depending on the current consumption of the USB and CPU, this might be too much.