User Interface Toolkit Enhancements
The following enhancements have been made to IDL's graphical user interface toolkit in the IDL 7.1 release:
Flat Button Appearance
The WIDGET_BUTTON, WIDGET_COMBOBOX, and WIDGET_DROPLIST routines have a new FLAT keyword, which creates a button or list widget that appears "flat" rather than with the default three-dimensional appearance.
Note the following: