Facebook chat

One thing that has bothered me about Facebook chat was the lack of minimize and close buttons that were traditionally located in the top right of the chat window.

As shown in the picture the close and minimize buttons are missing, although you can still click in their invisible places to close and minimize. At first I assumed this was a bug localized to my computer. This assumption was invalidated when a friend came to me complaining about the same problem. I can only assume that they made this change to showcase a more aesthetic or cleaner interface but I find it a little ridiculous to change a user interface standard which has been in place for at least a decade.