Night Theme Switcher

Automatically toggle your desktop’s color scheme between light and dark, switch backgrounds and run custom commands at sunset and sunrise.

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Table of contents

• Graphical installation
• Command line installation
• Contributing
• Frequently asked questions

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Graphical installation

Visit the extension page on extensions.gnome.org and enable the extension.

Command line installation

You will need these tools:

• meson
• gettext
• glib-compile-schemas
• glib-compile-resources

Clone the repository and enter the directory:

git clone https://gitlab.com/rmnvgr/nightthemeswitcher-gnome-shell-extension.git && cd nightthemeswitcher-gnome-shell-extension

Build and install using meson:

# System-wide installation
meson setup builddir && meson install -C builddir

# User installation
meson setup builddir --prefix=~/.local && meson install -C builddir

Restart your GNOME session and enable the extension:

gnome-extensions enable [email protected]

Contributing

You're welcome to contribute to the code or the translations! See CONTRIBUTING.md.

Frequently asked questions

Some applications don't switch their appearance

Like GNOME's built-in dark mode, the extension switches the standard freedesktop.org color scheme preference. Older applications might not follow this preference.

It is possible to force a GTK theme in the extension preferences, but please note that this can visually break applications. It is better to ask the developers of the applications to support the standard preference.

Something doesn't work on Ubuntu

Unfortunately, Ubuntu ships heavily modified GNOME components to implement some of its features, like accent colors. Because it does so in a very hacky way instead of working with upstream and other desktop projects on a proper solution, it conflicts with anything that deals with the color scheme and themes, and results in a broken experience with the extension.

As the issue is in Ubuntu, and because I don't have the energy nor the will to work around the consequences of their decisions, unfortunately Ubuntu is not supported until it provides a standard GNOME environment.

Switching happens too early/too late

There's a hidden setting to configure the offset (in hours) applied to the calculated sunrise and sunset times, you can change it with the gsettings command:

gsettings --schemadir ~/.local/share/gnome-shell/extensions/[email protected]/schemas/ set org.gnome.shell.extensions.nightthemeswitcher.time offset $DESIRED_OFFSET

I have disabled Location services but want to use sunrise and sunset times from my location

If you know your coordinates, you can enter them in a hidden setting, and the extension will use them to calculate the sunrise and sunset times. You can set it with the gsettings command:

gsettings --schemadir ~/.local/share/gnome-shell/extensions/[email protected]/schemas/ set org.gnome.shell.extensions.nightthemeswitcher.time location '($LATITUDE,$LONGITUDE)'