Windows 10 Light theme for Linux (GTK)

macOS theme for Gnome and GTK-based desktops

Windows XP themes

Dark version of macOS theme

Dark variant of Windows 10 theme

Home of the B00merang Redmond Collection themes for Linux

Home for the Linux theme emulating Chrome OS

OS X Leopard with Aqua-styled GTK widgets

A port of the Whistler theme that eventually got replaced by Luna in Windows 2001 (XP)

iOS theme for Linux desktops

Mac OS theme with the Aqua design guidelines

Android theme (based on Chrome OS code)

Theme mimicking Unity 8's design

Package of a Unity 7 theme (mainly for gnome)

Old-fashioned theme based on overall appearance of OS X Mavericks

Official Repository of the B00merang Collection

linux for humans

A neon flat theme based on arc-theme

A flat light theme for GTK 3 including Cinnamon, Unity, Gnome, etc.

Theme for Linux