This was fun but really short ... I must have missed the part where it explained the correlation between the color and the noise pattern. Why is it "pink" versus "chartreuse"?

Sometimes when I'm at the edge of sleep and a loud noise occurs, it may jolt me without immediately causing me to open my eyes. A pattern then appears in my vision that is invariably white on black (or seems to be) and usually looks like a splash. The title of this article led me to think there might be some discussion of that how a noise affects our visual/color receptors in the brain because there must be some overlapping wires in my head ...