by dprice·Workflow
Images © dprice. Used for product review; image policy.
Auto Dark Mode earns its place in the Blender extensions library for a focused job: pairing separate light and dark UI theme presets to your operating system's mode and keeping them in sync via a ten-second polling timer.
Auto Dark Mode links Blender's interface theme to your operating system's light and dark mode. You choose a separate UI theme preset for each state, and the add-on switches Blender to match whenever your system changes. For setups that flip between light and dark throughout the day, that keeps Blender in step automatically.
To detect changes, the add-on uses a timer that polls the system theme every ten seconds. It can use themes installed through Blender's Extensions, and requests permission to read installed themes so it can apply them.
Version 3.0.0 was the initial release on the Blender extensions platform. Compared with the legacy add-on, it streamlines the UI for picking light and dark themes, improves operating system compatibility, and adds the ability to select themes installed via Extensions. It is compatible with Blender 4.2 LTS and newer and is distributed under the GNU General Public License v3.0 or later.
Auto Dark Mode is best for blender 4.2 LTS and newer users who set their operating system to switch between light and dark mode and want Blender's interface theme to follow along.
Auto Dark Mode is completely free to download and use.
Auto Dark Mode is compatible with Blender 4.2 LTS and newer, so 4.2 is supported along with later releases. Version 3.0.0 was its initial release on the Blender extensions platform. You can add it by dragging and dropping the download into Blender, or by downloading it and installing from disk. Because it applies UI theme presets and switches them to match your operating system, running it on a supported Blender version is what lets it keep the interface in sync with your system's light and dark mode.
Auto Dark Mode uses a timer that polls for changes to the system theme every ten seconds. When it sees that your operating system has switched between light and dark mode, it applies the matching UI theme preset you chose for that state. This polling approach is how it keeps Blender in sync as your system changes throughout the day. The developer's page notes ongoing discussion about listening for theme changes rather than polling, which you can follow at the linked GitHub issue.
Auto Dark Mode can be installed by dragging and dropping the download into Blender, or by downloading the file and installing it from disk. It requests one permission, to read installed themes, since it applies theme presets to match your system. It can also use themes you have installed through Blender's Extensions when you assign your light and dark presets. For the download and any setup details, head to the developer's page. The add-on is compatible with Blender 4.2 LTS and newer.
Auto Dark Mode is listed as free here, and it is distributed under the GNU General Public License v3.0 or later. That license governs how you can use, modify and share the add-on, so it is worth reviewing if you plan to build on it. For current licensing and the source code, check the developer's page. The add-on has been downloaded thousands of times and carries a small file size, and it works with Blender 4.2 LTS and newer.
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