adw-gtk3 : The theme from libadwaita ported to GTK-3 ( https://github.com/lassekongo83/adw-gtk3 )
adwaita-dark-amoled : GTK-3/4 theme: black background, blue accent ( https://www.gnome-look.org/p/1553851 )
arc-darkest-colors : Flat, dark-mode theme with transparent elements ( https://github.com/rtlewis88/rtl88-Themes/tree/Arc-Darkest-COLORS-Complete-Desktop )
arc-kde : Port of the popular GTK theme Arc for Plasma 5 ( https://github.com/PapirusDevelopmentTeam/arc-kde )
bibata-xcursors : Opensource, compact, and material-designed cursor set ( https://github.com/ful1e5/Bibata_Cursor )
blackandwhite-gtk : GTK-3 theme: simple black-and-white, minimalistic ( https://www.gnome-look.org/p/2010116 )
breezex-xcursors : Cursor set highly inspired on KDE Breeze with HiDPi Support ( https://github.com/ful1e5/BreezeX_Cursor )
flat-remix-gtk : Black flat with a colorful palette, some shadows, highlights, gradients ( https://www.gnome-look.org/p/1293697 )
hackerer : GTK-3 theme: black background, green font ( https://www.opencode.net/infinity64/hackerer )
juno : GTK-3 themes: dark, inspired by epic vscode themes ( https://www.gnome-look.org/p/1280977 )
materia-theme : A Material Design theme for GNOME/GTK based desktop environments ( https://github.com/nana-4/materia-theme )
midnight : Dark GTK-2, GTK-3, Gnome Shell, Cinnamon and Xfwm4 themes base on Arc-Theme ( https://www.gnome-look.org/p/1273208 )
neonly-cursor : Cursor theme using a custom color palette inspired by boreal colors ( https://github.com/alvatip/Neonly )
obsidian-icon-theme : Obsidian Icon Theme is intuitive Faenza-like icon theme ( https://github.com/madmaxms/iconpack-obsidian )
obsidian2-gtk-theme : Obsidian Gnome Theme, based upon Adwaita-Maia dark skin ( https://github.com/madmaxms/theme-obsidian-2 )
papirus-claws-mail-theme : Papirus icon theme for Claws Mail ( https://github.com/PapirusDevelopmentTeam/papirus-claws-mail-theme )
qogir-icon-theme : A flat colorful design icon theme for linux desktops ( https://github.com/vinceliuice/Qogir-icon-theme )
razor-sharp-gtk : GTK-3/4 theme: very dark background, red font ( https://www.gnome-look.org/p/1708445 )
solarized-black : GTK theme Solarized, multiple colors ( https://www.gnome-look.org/p/1388140 )
sound-theme-librem5 : Sound theme for the Librem 5/PinePhone ( https://source.puri.sm/Librem5/sound-theme-librem5 )
vimix-xcursors : Theme inspired by Materia design and based on capitaine-cursors ( https://github.com/vinceliuice/Vimix-cursors )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a guru
For Paludis use this rsync : rsync://gentoo.zugaina.org/guru-portage
If you have a problem : ycarus(-at-)zugaina.org