Packages with the themes use flag

app-emulation / wine-any : Free implementation of Windows(tm) on Unix, with optional external patchsets

  • Support GTK+:3 window theming through Wine-Staging

app-emulation / wine-staging : Free implementation of Windows(tm) on Unix, with Wine-Staging patchset

  • Support GTK+:3 window theming through Wine-Staging

games-arcade / lbreakout2 : Breakout clone written with the SDL library

  • Install additional themes

lxqt-base / lxqt-session : LXQT session manager

  • Install LXQt themes and graphics

mate-base / mate : Meta ebuild for MATE, a traditional desktop environment

  • Install MATE Desktop's themes; if you use other themes, you can disable this to spare some space and time.

media-gfx / album : HTML photo album generator

  • Install optional themes

sys-boot / grub : GNU GRUB boot loader

  • Build and install GRUB themes (starfield)

www-apps / wordpress : Wordpress PHP and MySQL based content management system (CMS)

  • Installs themes (including default theme)

www-misc / xxv : WWW Admin for the VDR (Video Disk Recorder)

  • Enable more themes via x11-themes/xxv-skins

x11-themes / gtk-engines-murrine : Murrine GTK+2 Cairo Engine

  • Pull in themes via x11-themes/murrine-themes

x11-wm / e16 : Enlightenment Window Manager (E16)

  • Install the official E16 themes using x11-themes/e16-themes

x11-wm / pekwm : A lightweight window manager initially based on aewm++

  • Install additional themes