Six Blender 2.8+ 4.0+ 5.0+ Black Themes Pack
To install a theme:
- Choose the zip file corresponding to your Blender version (2.8+ or 5.0+),
- Unzip the corresponding xml file,
- open Preferences from the Edit menu,
- select Themes from the left sidebar,
- click the Install button on the top-right,
- find your xml and click Install Theme.