Description: Arc-Dark-Red Cinnamon theme is a dark theme works fine on Ubuntu. Do test it out.
Description: Windows 8 theme for gtk is a a theme for Linux GTK3.
Description: Clean and elegant transparent grey-blue color, designed to relax your eyes while using your computer. Includes Window theme color and Metacity matching icons.
Description: NumixDarkRed (+Cinnamon) 0.2.1, text editors color scheme added