Search "white backlight" here to download the JSON file if VIA does not
automatically recognize keymap of the C2 Pro:
https://www.keychron.com/blogs/archived/how-to-factory-reset-or-flash-your-
qmk-via-enabled-keychron-c2-pro-keyboard
VIA Software for macOS, Windows, Linux: https://usevia.app/#/
How to Use VIA on Your Keychron C Pro Series Keyboard:
https://www.keychron.com/blogs/archived/how-to-use-via-to-program-your-k
eyboard
C2 Pro Source Code, please search "source code" on the product page on our
official website.