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Arc Theme

Arc is a flat theme with transparent elements for GTK 3, GTK 2 and various desktop shells, window managers and applications. It's well suited for GTK based desktop environments such as GNOME, Cinnamon, Xfce, Unity, MATE, Budgie etc.

The theme was originally designed and developed by horst3180, but the project has been unmaintained since May 2017.

This fork aims to keep the theme updated with new toolkit and desktop environment versions, resolve pre-existing issues, and improve and polish the theme while preserving the original visual design.

Arc is available in four variants


A screenshot of the Arc theme


A screenshot of the Arc-Darker theme


A screenshot of the Arc-Dark theme


A screenshot of the Arc-Lighter theme

Supported toolkits and desktops

Arc comes with themes for the following:

  • GTK 2
  • GTK 3
  • GTK 4
  • GNOME Shell >=3.28
  • Cinnamon >=3.8
  • Unity
  • Metacity
  • Xfwm
  • Plank



Arc Theme is available from the official software package repositories for many common Linux distributions and FOSS operating systems. Installing the theme by using the package manager of your operating system should be the preferred method in most cases.

See the wiki for non-exhaustive list of distribution packages, and some additional packages.

Manual installation

For installing the theme by compiling it from the source code, see for build instructions, list of dependencies, build options and additional details.


If you are experiencing any kind of issues, found a bug, or have a suggestion for improving the theme, please open an issue at

Some known issues are addressed in common problems.


If you'd like to contribute to the project, open an pull request, or an issue for discussion. See for further details.


Arc is available under the terms of the GPL-3.0. See COPYING for details.

Full Preview

A full screenshot of the Arc theme Screenshot Details: Icons: Arc | Launcher Icons based on White Pixel Icons | Wallpaper | Font: Futura Bk bt