I did just answer this here
Adjusting when using RGB is pretty easy: Given values of R, G, B, you adjust one or two of them to match the levels of the 3 colors to give you a white level that seems correct. (so if your blue is too low, you’d either boost your blue, or more likely, lower your green/red to meet the level of blue generated, so that it displays ‘white’ (or at least as white as your strip is capable of)
Doing this with HSV, it’s a very non-trivial math (mostly: converting to RGB first, adjusting as above, and then converting BACK to HSV) but if you really want to do it, figure out your adjustment with RGB, then use code (elsewhere on this forum) to do hsv2rgb(), adjust(), rgb2hsv() and then use hsv.
I agree, it’s a reasonable request to ask for a white balance setting to set a global adjustment in PB, however, doing so for multiple strings of lights (anything more than 1) would be annoying to code for… so mixing and matching different types is likely NOT in scope of this request. Just ONE adjustment should be pretty basic though.