Trails of Wind (2019)

Related:

Trails of Wind: Data Visualization of the Architecture of Airport Runways - https://news.ycombinator.com/item?id=20757801 - Aug 2019 (33 comments)

(Reposts are fine after a year or so; links to past threads are just to satisfy extra-curious readers!)

There's something weird for the rendering of the runways on my machine. For example, IAD's 1L/19R is grey while 1L/19C and 1L/19R both show up blue, as expected. 12/30 is the proper yellow.