Board Thread:Questions and Answers/@comment-44975735-20200305170443/@comment-44975735-20200330061446

No. It reminded me in a way that I had another look at the palace and noticed these techniques.

I originally got that idea about holes from here (time 3:40) which is unrelated to Frozen:

https://www.youtube.com/watch?v=MeObbrfCSUY

I've found that second technique while doing a personal challenge for myself to create a similar material to what was used on the Ice palace using Blender. That's when I also noticed that it changes color with lighting.