Themix GUI theme designer

Build Status

Graphical application for generating different color variations of Oomox (Numix-based), Materia (ex-Flat-Plat) and Arc themes (GTK2, GTK3, Cinnamon, GNOME, Openbox, Xfwm), Archdroid, Gnome-Color, Numix, Papirus and Suru++ icon themes. Have a hack for HiDPI in gtk2.

Table of contents:

Screenshot image import

Screenshot GUI

Big screenshot with number of generated themes 🔗

Latest Oomox GTK theme screenshots 🔗


Arch Linux


pikaur -S themix-full-git

AUR helpers are not officialy supported, so you can also install it manually from either rolling-release or stable PKGBUILD.

Open the GUI


CentOS, Fedora, Mageia

Oomox can be installed by using a third party COPR repository:

sudo dnf copr enable tcg/themes
sudo dnf install oomox

Debian, Ubuntu, Linux Mint

For Debian 9+, Ubuntu 17.04+ or Linux Mint 19+ you can download oomox.deb package here: Make sure what universe repository is enabled.

sudo apt install ./oomox_VERSION_17.04+.deb  # or ./oomox_VERSION_18.10+.deb for Ubuntu 18.10+

Or, if you don't want to install third-party binary package you can build it on your own:

# with docker:
sudo systemctl start docker
sudo ./packaging/ubuntu/  # sudo is not needed if your user is in docker group

# or directly from ubuntu host if you don't like docker:
./packaging/ubuntu/ control
# or ./packaging/ubuntu/ control_1810

For older releases install the dependencies manually and next follow general installation instructions below.

Other distributions


For GUI app itself:

  • python3-gobject
  • gtk3>=3.18
  • gdk-pixbuf2
For plugins:

Oomox theme:

  • sassc>=3.4
  • rsvg-convert from librsvg
  • glib-compile-schemas from glib2
  • gdk-pixbuf2
  • bc
  • sed
  • find
  • grep

Materia and Arc themes:

  • sassc>=3.4
  • glib-compile-schemas from glib2
  • gdk-pixbuf2
  • bc
  • sed
  • find
  • grep
  • optipng
  • gtk2-engine-murrine
  • resvg or inkscape
  • parallel (Materia only)

Gnome-Colors icons:

  • bc
  • sed
  • find
  • grep
  • rsvg-convert from librsvg
  • imagemagick
  • breeze-icons - optional, to provide more fallbacks

Archdroid, Papirus and Suru++ icons:

  • sed
  • find
  • breeze-icons - optional for Archdroid, to provide more fallbacks

Spotify theme:

  • polkit or gksu
  • zip
  • bc
  • grep

Import colors from images:

  • python3 PIL or Pillow

Base16 format support:

  • python3 pystache
  • python3 yaml

Xresources import:

  • xorg-xrdb - optional, for xresources themes


git clone --recursive
cd oomox
# if you need to generate locales:
make -f install



After exporting a theme select the generated theme (oomox-YOUR-THEME-NAME) in your appearance config tool (for example, lxappearance or gnome-tweak-tool).


If your prefer CLI interface, refer to scripts inside ./plugins/. For xresources and random themes in CLI use palettes from /opt/oomox/scripted_colors/ directory. Using scripted palettes enables you to use bash to write simple generators for dynamic themes (as alternative to plugins in oomox-gui). GUI is not attempting to execute any scripted palettes with bash because downloading such scripted themes from random places could lead to unexpected result so you can use them only with CLI, when you really know what you're doing.


Spotify theme can be also exported from GUI, but if you prefer commandline interface:

./plugins/oomoxify/ ./colors/gnome-colors/shiki-noble

Also you can normalize font weight with -w argument, see -h for usage.

Spotify theme settings are backed up to ~/.config/oomox/spotify_backup. To undo the changes made by oomoxify, these files can be copied back to their original location /usr/share/spotify/Apps. Spotify can also be reinstalled, which will reset these files as well.

Users running Spotify under Flatpak should set their "Spotify path" in oomox to /var/lib/flatpak/app/com.spotify.Client/current/active/files/extra/share/spotify/Apps in order to apply the theme.

Using with tiling WMs

Create/append to ~/.config/gtk-3.0/gtk.css:

/* remove window title from Client-Side Decorations */
.solid-csd headerbar .title {
    font-size: 0;

/* hide extra window decorations/double border */
window decoration {
    margin: 0;
    border: none;
    padding: 0;

Extra GTK3 CSS hacks

Create/append to ~/.config/gtk-3.0/gtk.css:

* {
  text-shadow: none;

Review articles and videos

To learn more about using the application you can check these sources:


Graphical application for generating different color variations of a Arc, Materia and Oomox themes (GTK2, GTK3 and others), Archdroid, Gnome-Colors, Numix, Papirus, Suru++ icons, and terminal palette.

Oomox Info

⭐ Stars 1278
🔗 Source Code
🕒 Last Update a year ago
🕒 Created 7 years ago
🐞 Open Issues 24
➗ Star-Issue Ratio 53
😎 Author themix-project