My question is about the white balance tool in Lightroom. The temp slider is measured in units of Kelvin. What unit is the tint slider measured in? I assume it would also be Kelvin but it only rangers from -150 to 150.
Look at the illustration in this article that discuss the color of white. You'll see the first axis for Tint/Temp or Lines of Correlated Color Temperature (CCT) running perpendicular to the Black Body curve: