dfrobot display, control brightness?

Does this product have any documentation I can download?

DFRobot 10.1" 800x1280 mini-HDMI IPS Display

I’m particularly interested in this sentence from the description: "The backlight is adjustable through the USB port. It supports 100-level backlight adjustment by using a script to control the brightness. "

Unfortunately, no more information was shared with us from the original manufacturer. However, after searching the internet, I did come across a wiki: https://wiki.dfrobot.com/10.1_inch_800x … KU_DFR0615. We do not support these resources for future reference.