Copyright © 2008, 2009 Arndt Roger Schneider
Graphical User Interface Fashions existed from the very start.
The current trend can be summed up as follows:
No trend can be deduced for Combobox, Tabset, Spreadsheet, Hierarchy and Scrollbar.
Clearlooks is a good example for the current trends. iTunes® also exhibit these trends; see "Settings for Party-Shuffle" for example.