How did they do that? The Chicago Tribune says that "The images are designed on computer, says CNA Financial spokesman Boesel, but the rest of the work is done manually. Every blind is changed, every light switch is clicked on or off by human hands." (The CNA Center says Go Bears.)
And Dan Perez, CNA's senior software manager, is described as "the Michelangelo of the Chicago night skyline."
But in the end, the celebration lights were not required.
