Alternatives and similar repositories for System-4

Users that are interested in System-4 are comparing it to the libraries listed below

• B00merang-Project / Mac-OS-9
  The classic look of Mac OS 9, now for GTK 3 desktops
  ☆92Updated last year
• B00merang-Project / Solaris-9
  GTK theme based on the CDE desktop used in Solaris 10
  ☆48Updated last year
• luigifab / human-theme
  The old Ubuntu Human theme for GTK 2.24, 3.24, 4.12..4.18 (perfect for MATE, not too bad for Xfce).
  ☆61Updated last month
• mdomlop / retrosmart-x11-cursors
  An old-fashioned look X11 cursor theme
  ☆61Updated 4 months ago
• B00merang-Project / Windows-Whistler
  A port of the Whistler theme that eventually got replaced by Luna in Windows 2001 (XP)
  ☆44Updated last year
• timnetworks / Platinum9
  Mac OS 9 Theme for Xubuntu
  ☆128Updated 5 years ago
• wallace-aph / System6-theme
  Macintosh System 6 XFCE4 Theme
  ☆31Updated 6 years ago
• JohnDDuncanIII / platinum
  macintosh OS 9 Theme for OS X 10.11
  ☆22Updated 4 years ago
• morgant / mlvwmrc
  Macintosh-like Virtual Window Manager (MLVWM) configuration files
  ☆25Updated last month
• B00merang-Project / Haiku
  GTK theme based on the appearance of Haiku OS, based on BeOS
  ☆32Updated last year
• alx210 / emwm
  Enhanced Motif Window Manager (MWM fork). Supports Xinerama, Xrandr, UTF-8/Xft, and relevant EWMH.
  ☆88Updated last week
• dominichayesferen / Chicagofier
  An automatic Chicago95 script for Xubuntu
  ☆98Updated 3 years ago
• B00merang-Project / Windows-3.11
  A GTK theme based on Windows 3.11 appearance
  ☆76Updated last year
• B00merang-Project / OS-X-Leopard
  OS X Leopard with Aqua-styled GTK widgets
  ☆48Updated last year
• afterstep / afterstep
  Super configurable, extra lightweight, and fluidly fast Window Manager for X
  ☆60Updated 3 years ago
• RyuKojiro / classic-wm
  Remember when windows had sharp edges?
  ☆42Updated 5 years ago
• labwc / labwc-menu-generator
  ☆18Updated this week
• window-maker / dockapps
  Window Maker dockapps collection
  ☆69Updated 5 months ago
• B00merang-Project / Mac-OS-X-Cheetah
  Mac OS theme with the Aqua design guidelines
  ☆35Updated last year
• IndieRunner / IndieRunner
  Launch your indie games on more platforms!
  ☆34Updated 3 months ago
• darealshinji / haiku-icons
  Haiku OS icons, exported to HVIF, SVG and PNG
  ☆63Updated last year
• B00merang-Project / Windows-95
  GTK theme based on the classic appearance of Windows 95 and Windows Server 2003
  ☆147Updated last year
• Stanton731 / Memphis98
  Port of Windows 98/2000 icons to KDE Plasma
  ☆88Updated 4 years ago
• mintsuki / fvwm95
  fvwm95, ported to work on modern distributions such as Debian, Ubuntu, and Arch.
  ☆118Updated last year
• window-maker / wmaker
  Mirror of the official repository repo.or.cz/wmaker-crm.git. Do not send pull requests here, send your patches to wmaker-dev@googlegroups…
  ☆155Updated 6 months ago
• mdomlop / retrosmart-icon-theme
  An icon theme mainly based in the Haiku OS look
  ☆91Updated last year
• matthewmx86 / Redmond97
  A WIn9x inspired GTK2/GTK3 theme deveoloped for XFCE4
  ☆115Updated last year
• minimumattic / pixflat-theme
  RaspberryPiOS PiXflat modified theme and icons for LXDE (Openbox) / XFCE (xfwm4) / GNOME (GTK)
  ☆13Updated last month
• alx210 / emwm-utils
  Minimalist session manager and a /toolchest/ like application launcher for Unix/X11.
  ☆23Updated 3 months ago
• aarnt / octoxbps
  A Qt-based XBPS front end
  ☆79Updated last week