Re: glass folders
I don't get it either. One of them opened in Preview. I copied it there and was not able to paste it via the Get Info window of the folder I wanted to do it on.
Oops! I just now opened the icon in Photoshop, copied it there and pasted it using the Get Info window for the particular folder.
I'm sure there must be another way, cuz not everybody has Photoshop.