With Gnome 3.6 release coming closer, a lot of visible improvements are arriving in the desktop front. Some applications have got some renovated looks, namely Nautilus, Gnome Disk Usage Analyzer, Empathy and the Gnome Message Tray. Gnome Disk Usage Analyzer (Baobab) has got some visual improvements and looks cleaner now. Some screenshots below:
The code has been reworked in Vala and is lighter and more integrated with the Gnome environment. The new disk usage analyzer will ship in Gnome 3.6 release.