City lights

[vettecat]

I often commute home past the Hyatt Regency on Memorial Drive (a.k.a. the ziggurat). I've noticed that they've been changing the color of the neon that edges the steps a lot more often lately. So far I've seen red, yellow, green, and blue. Which leads me to think there's no way they can be using chemical tubes. Anyone have any idea how they're doing that? Just wondering...

Comments

[vettecat.livejournal.com]

One of my loyal readers found the answer... see comments below if you're interested.