Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
The days of ugly Linux desktops are a thing of the past. Modern distros include many tools and options that enable them to look good and be more useful.
Unlike Windows, Linux has several different widget toolkits. The most well-known widget engines are GTK+, (distributed with GNOME) and QT. (pronounced “cute”) Widgets are the various elements which make up a program's GUI: scrollbars, arrows, checkboxes, etc. However, take note that QT or GTK widgets are not the same thing as desktop widgets.
Widgets and other things like window chrome (the toolbars, panels, etc. of a programs interface) and window decoration (the window's title bar, minimize/maximize/close buttons, and the window border) are the various elements that, when joined together, create a theme for QT or GTK. It is possible to modify the various themes in Linux to change how they look or even create your own. This article will address the various resources that are out there to help make your desktop look its best and help you get the most out of it.