I do like "mental hospital green" as it does help with tolerating straight jackets. Also, if your cell is covered with graffiti scratches that does deflect some treble content…walls covered with meat mean one of two things: You fell asleep in a meat packing plant, or you've been eaten by something. Both scenarios do help with early reflections.
Room color opinions
Does a color of a room affect the sound? Im thinking of a light colored room making the sound bright compared to a darker room color . What are your opinions on room color .Â