Decorations Under the High Line

There are decorations under the High Line at its termination at Gansevoort Street, right next to the Whitney Museum.  I have Googled my brains out and I cannot find out any information about what this is all about.  There were no signs explaining what this is all about.  It is beautiful latticework, with colored electric lights, like you would have on your Christmas tree.  It was overcast when I was there, so the lights were easily visible, which might not happen on a sunny day.  Beautiful, but mysterious.