Clearlooks
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Clearlooks is a theme engine for GTK+, the main widget toolkit used by the GNOME desktop environment. It is based on Red Hat's Bluecurve theme. The theme engine draws the actual widgets, and can be configured with 'themes' that invoke the theme engine with different configurations. It is the default theme for many Linux distributions including Fedora Core versions 4 to 6 and Foresight Linux. Additionally, Ubuntu versions before 6.06 and current releases of SUSE Linux include themes based on Clearlooks with modified colour schemes. Many users have contributed themes that have changed the colors and some visual effects, leading to many derivative themes on sites such as art.gnome.org and GnomeLook.
The README distributed with Clearlooks 0.6 reads:
- This is a GTK+ 2.x engine based on Bluecurve. It features a modern look without sacrificing (much) speed. The lead developers are Richard Stellingwerff and Daniel Borgmann.
Current version of Clearlooks use Cairo as a backend. Older releases just use GDK to draw the widgets.
Qt 4.2 will use Cleanlooks to better integrate with GTK applications.[1]