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Rusts, olive green and yellow, but very, very dark and faint. There is a vague pattern that I could only describe to you if you have written a graphics card driver. Sharp noises cause flashes of white at the top. On a related subject, my piano teacher has synthesia and sees a unique color for every sound frequency.

I just looked that up, what a wild sensory ride that must be. Imagine relating a smell to the sight of a letter. Personally, I think A might smell strong; B more mild.

I'm so glad you reported back. Interesting colors. I've never seen anything close to red or yellow. Red would be heart in Chinese medicine, and yellow spleen.