Search "white backlight" here to download the JSON file if VIA does not automatically recognize

keymap of the K1 Pro: 

https://www.keychron.com/blogs/archived/k1-pro-factory-reset-and-firmware-flash

VIA Software for macOS, Windows, Linux: https://usevia.app/#/

How to Use VIA on Your Keychron K Pro Series Keyboard:

https://www.keychron.com/blogs/archived/how-to-use-via-to-program-your-keyboard

K1 Pro Source Code, please search "source code" on the product page on our official website.