Elementary XElementary OS system theme with custom OS X window controls. (light/dark)
La Capitaine Icon ThemeLa Capitaine is an icon pack designed to integrate with most desktop environments. The set of icons takes inspiration from the latest iterations of macOS and Google's Material Design.
MatoMato - Icon pack for Linux
VscodeVSCode file specific icons for improved visual grepping
Flat RemixFlat Remix is an icon theme inspired by material design. It is mostly flat using a colorful palette with some shadows, highlights, and gradients for some depth.
OomoxGraphical application for generating different color variations of a Materia and Oomox themes (GTK2, GTK3 and others), Archdroid, Gnome-Colors, Numix, Papirus, Suru++ icons, and terminal palette.
Adwaita PlusGNOME++, a third-party icons theme, based on new GNOME 3.32's Adwaita
Suru Plus UbuntuSuru++ Ubuntu — An elegant third-party icons theme based on Sam Hewitt's Suru Icons
IconhandlerTint you Icons, change the size, apply alpha color and set a position easily. 👓
Yaru PlusYaru++, an elegant and modern third-party icons theme, based on Ubuntu's Yaru
Antu IconsA smooth theme designed for Plasma Desktop
Luv Icon Theme Lüv is the spiritual successor to Flattr, a flat but complex icon theme for freedesktop environments.
Win98SESE98 icon theme for GTK+ based on Windows 98 SE style and grassmunk/Chicago95 theme.
Papirus-NordCustom colors for folder icons for Papirus Icon Theme!
iconsSimple, minimal line, and clean icon pack in vector formats — free for public use.
ClarityCustomizable Monoshape Vector Icon Theme for GTK+