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 )
materia-theme : A Material Design theme for GNOME/GTK based desktop environments ( https://github.com/nana-4/materia-theme )
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 )
phinger-xcursors : Most likely the most over engineered cursor theme ( https://github.com/phisch/phinger-cursors )
qogir-icon-theme : A flat colorful design icon theme for linux desktops ( https://github.com/vinceliuice/Qogir-icon-theme )
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