sddm-astronaut-theme
sddm-astronaut-theme is a series of themes for the SDDM display manager made by Keyitdev.
It's written using the latest version of Qt, which is Qt6. Its key features include virtual keyboard support and an installation script. This theme also support animated wallpapers. You can easily change its appearance by choosing another of the ten pre-made themes or creating your own. Each of these themes was created by modifying just one file - config.
All themes were created for 1080p. However, they should work well in other resolutions.
Preview of all themes
Preview of animated themes
animated_themes_all.mp4
Detailed previews
Detailed previews
| Astronaut | Black hole |
|---|---|
 |
 |
| Japanese aesthetic | Pixel sakura static |
 |
 |
| Purple leaves | Cyberpunk |
 |
 |
| Post-apocalyptic hacker | xxx |
 |
Hyprland Kath
hyprland_kath.mp4
Pixel sakura
pixel_sakura.mp4
Jake the dog
jake_the_dog.mp4
Installation
Automatic Installation
bash -c "$(curl -fsSL https://raw.githubusercontent.com/keyitdev/sddm-astronaut-theme/master/setup.sh)"Works on distributions using pacman, xbps-install, dnf, zypper.
Remember to always read the scripts you run from the internet.
NixOS Installation
Using System Configuration with Custom Overrides
While not officially packaged by the upstream maintainers, there is a community-maintained package maintained by @DaniD3v, @uxodb, and @qweered. You can install and customize the theme by creating an override of the package in your configuration.nix:
let sddm-astronaut = (pkgs.sddm-astronaut.override { embeddedTheme = "japanese_aesthetic"; # or any other theme themeConfig = { # Customize colors and settings HeaderTextColor = "#d5c4a1"; Background = "Backgrounds/your-custom-background.png"; # ... other theme configuration options }; }).overrideAttrs (oldAttrs: { # Optional: Inject custom background image installPhase = oldAttrs.installPhase + '' chmod u+w $out/share/sddm/themes/sddm-astronaut-theme/Backgrounds/ cp ${./relative/path/to/your-custom-background.png} \ $out/share/sddm/themes/sddm-astronaut-theme/Backgrounds/your-custom-background.png ''; }); in { environment.systemPackages = [ sddm-astronaut ]; services.displayManager.sddm = { enable = true; package = pkgs.kdePackages.sddm; extraPackages = with pkgs; [ kdePackages.qtmultimedia # Required for video backgrounds/audio ]; theme = "sddm-astronaut-theme"; }; }
Manual Installation
- Install dependencies
sddm >= 0.21.0, qt6 >= 6.8, qt6-svg >= 6.8, qt6-virtualkeyboard >= 6.8, qt6-multimedia >= 6.8
You may also want to install additional video codecs like h.264.
sddm qt6-svg qt6-virtualkeyboard qt6-multimedia-ffmpeg # Arch sddm qt6-svg qt6-virtualkeyboard qt6-multimedia # Void sddm qt6-qtsvg qt6-qtvirtualkeyboard qt6-qtmultimedia # Fedora sddm-qt6 libQt6Svg6 qt6-virtualkeyboard qt6-virtualkeyboard-imports qt6-multimedia qt6-multimedia-imports # OpenSUSE sddm qt6-svg-dev qml6-module-qtquick-virtualkeyboard qt6-multimedia-dev qml6-module-qtquick-controls qml6-module-qtquick-effects libxcb-cursor0 # Debian trixie (13.5)
- Clone this repository
sudo git clone -b master --depth 1 https://github.com/keyitdev/sddm-astronaut-theme.git /usr/share/sddm/themes/sddm-astronaut-theme
- Copy fonts to
/usr/share/fonts/
sudo cp -r /usr/share/sddm/themes/sddm-astronaut-theme/Fonts/* /usr/share/fonts/- Edit
/etc/sddm.conf
echo "[Theme] Current=sddm-astronaut-theme" | sudo tee /etc/sddm.conf
- Edit
/etc/sddm.conf.d/virtualkbd.conf
echo "[General] InputMethod=qtvirtualkeyboard" | sudo tee /etc/sddm.conf.d/virtualkbd.conf
Selecting a theme
You can select theme by editing metadata (/usr/share/sddm/themes/sddm-astronaut-theme/metadata.desktop).
Just edit this line:
ConfigFile=Themes/astronaut.conf
All available configs are in Themes directory.
Previewing a theme
You can preview the set theme without logging out by runnning:
sddm-greeter-qt6 --test-mode --theme /usr/share/sddm/themes/sddm-astronaut-theme/
Note that depending on the system configuration, the preview may differ slightly from the actual login screen.
Sources
Initially the theme was independed fork of MarianArlt's theme but now the project has come a long way and started to significantly deviate from the original. Many of the wallpapers and fonts used in this project are very popular and copied from one user to another, so I don't know who the original creator is. I also redesigned many of them, but here are links to some of the orginal artists who created these wonderful wallpapers:
- Astronaut: wallpaper, font
- Black hole: wallpaper, font
- Japanese aesthetic: wallpaper by gharly, font
- Purple leaves: wallpaper, font
- Cyberpunk: wallpaper by patrika, font
- Post-apocalyptic hacker: wallpaper by patrika, font
- Hyprland Kath: wallpaper, font
- Pixel sakura: wallpaper, font
- Jake the dog: wallpaper, font
Supporting project
You can support me simply by dropping a star on github or giving a subscription on YouTube.
If you enjoyed it and would like to show your appreciation, you can make a donation using kofi.
Distributed under the GPLv3+ License.
Copyright (C) 2022-2025 Keyitdev.