It's fine! The comments on most of my packs are basically that anyhow.
I'm also available via Discord in DevTalk if you want more real time support/questions.
As for the functionality, yeah it's supposed to be multiplied. I don't have it directly in front of me to double check, but I believe I used multiplication so that intensity could overshoot it. Most colors are in expressions of fractions, meaning if you multiply the RGB it by anything larger than 1, it should drive the value/brightness the other direction rather than only darkening the visuals (e.g, by multpllying (1.0, 0, 0) and (0,0,1.0) to produce (0,0,0))
If you want to toss the variations my way I wouldn't mind putting it in the next time I update this pack. Admittedly I am drowning right now in event prep for our upcoming VN Competition, so it might be a while.