This add-on for Blender lets you choose separate UI theme presets for light and dark mode and automatically matches the light/dark mode of your operating system. If you have your computer automatically switch between light and dark mode throughout the day, this add-on will keep Blender in sync as it changes.
Auto Dark Mode will match the system light/dark mode on macOS 10.14 or newer, Windows 10, or Linux with GTK.
Download the .zip package of the latest release (you may need to right click and choose "Download Linked File" to avoid automatically unzipping the package). Add it to Blender using Edit > Preferences > Add-ons > Install…, then click the checkbox next to the add-on to activate it.
Once activated, the add-on works automatically. You can change the theme presets used for light and dark mode under Edit > Preferences > Add-ons > User Interface: Auto Dark Mode (by default, it uses the “Blender Light” and “Blender Dark” themes).
Want more themes to pick from? Look in the Themes forum thread or Blend Swap.
When Auto Dark Mode is installed, always change your preferred light and dark theme under Preferences > Add-ons > User Interface: Auto Dark Mode. Theme selections from Preferences > Themes will only last until the next light/dark mode switch occurs.
If you have made customizations to individual elements of the Blender user interface in Preferences > Themes, save your customizations as a preset before installing Auto Dark Mode. Otherwise, Auto Dark Mode will overwrite your changes. After installation, choose your saved preset in Preferences > Add-ons > User Interface: Auto Dark Mode.
While customizing a theme, disable Auto Dark Mode to avoid having your changes overwritten.
If you install this on a system that does not support dark mode, only the Light Mode preset within this add-on will be used.
The Auto Dark Mode add-on is available under the GNU GPL v3 license. See the LICENSE file for more info.
This add-on includes the darkdetect Python package, which is copyright © Alberto Sottile and distributed under the 3-clause BSD License.