I would respectfully say you may want to get beta designs into the hands of some the non-audiophile crowd but who might be highly visual persons, i.e. designers, photographers etc and who are also hifi and/or streaming enthusiasts.
As a photographer, I work with visuals and visual programs/equipment all day so ease of UX and eye/brain fatigue is important to me. It does seem as if this horse has been beaten at this point though. I understand that things like color schemes, font choices, etc are burdensome and most are fine with light and dark theme (I’m fine with dark). Perhaps in the future stick to the mono theme but offer a light, medium, and dark?