This is basically the same Siva Flat, a magnificent theme made by nale12 (original, with many variations here: SivaFlat), but with greener pastures, result of some of my GIMPing to make it more suitable for my openSUSE Xfce install. I changed the selected and hover text color, button colors and arrows. Basically, everything pinkish in original Siva Flat Dark has been changed to grey-green openSUSE pastures.