ambiance-radiance-flat-colors-gtk-theme (gtk theme)

Ambiance & Radiance Flat is a Modern, Beautiful and Vivid
Re-imagination of the Ambiance & Radiance Color GTK 2/3 Themes. It
features a Modern, Clean And "Flat" look in your choice of 13 vibrant
colors. Despite it's name it is a completely new theme. Not just a
simple mod of Ambiance. (We wish it was that easy. But we redesigned
lots of things.)