arc-theme-Red (A red variation of Horst3180's Arc Theme).

Arc is a flat theme with transparent elements for GTK3, GTK2 and
Gnome-Shell which supports GTK3 and GTK2 based desktop environments
like Gnome, Unity, Budgie, Pantheon, XFCE, Mate, etc.

Arc Red is available in three variants:

 * Arc-Red,
 * Arc-Red-Darker and
 * Arc-Red-Dark.