I wonder what they used.

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1

I wonder what they used.

2

At first I thought I was just seeing the top few inches of a train passing by behind a walled bridge until I looked this up. Fun setup they have there. Apparently 3,200 pixels. Here’s a photo from the daytime that shows the LEDs.

missing/deleted image from Google+

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Are they oblivious using the FastLED’s or another library by the industry?

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I don’t know if there’s particularly any way of actually knowing. If they ran through the rainbow and we could see their lemony colors @Mark_Kriegsman might be able to at least rule it as a possibility or a nay.