Last night I was able to watch the sun go down, and while I watched I was noticing the opposite of what I was able to see on a morning a week or so ago. As I watched I found objects with green and red shades in them, and I saw them gradually loose those colors. While that was happening anything with a blue tint was unaffected and sort of stood out more to me. If I had noticed this before I knew what was happening, I probably would have thought it was magic!!