GTK has some great looks by default. However, it can look better. In the list below are ten of my favorite themes, which can be used with Ubuntu GNOME and other distributions that use the GNOME desktop ("How can I install this?" - here's how [http://www.devpy.me/top-five-ubuntu-desktop-environments/#gnomeshell]). Themes are packages with CSS code to style the dash, launcher, and panel. They are widely used with GNOME and other desktop environments. [http://www.devpy.me/top-five-ubuntu-desktop-e