sig renaming/edit pop up window

The pop up window is clumbsy for text editing when manually changing sig classes or IDs

The ??? Is hard to over write at times if you do not select it perfectly in the text box often leaving the following in the box ???D or when hi lighting the ??? And you miss hi lighting it does all the other text in the window.

I suggest using a graphical back ground instead of text to make it smoother.