Search "white backlight" here to download the JSON file if VIA does not
automatically recognize keymap of the K13 Pro:
https://www.keychron.com/blogs/archived/k13-pro-factory-reset-and-firmwar
e-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-k
eyboard
K13 Pro Source Code, please search "source code" on the product page on our
official website.