Need definitions of: Dark; Warm; and Bright

You know them when you hear them.

Mapman summed it up nicely. 

op

https://www.moon-audio.com/audiophile-terms-guide

https://www.audiophileon.com/news/how-to-describe-sound-an-audiophile-terminology-guide

https://www.stereophile.com/content/sounds-audio-glossary-glossary

I liken bright to shrill/ harsh though many may think that is an extreme comparison. To my ears that is what I hear. Warm is the sweet spot, feels good, sounds good, “right” if you will. Dark is heavy, defined but not in your face. Good lower end impact without much overtone. Being a drummer, these terms are often used as descriptors of cymbals, drums too at times, but always cymbals.