In user preferences -> Themes -> Install... -> select the .xml file :)
- main repo : https://codeberg.org/Nesakko/blender-BreezeDark-theme
- mirror repo : https://github.com/Nesakko/blender-BreezeDark-theme
- mirror repo : https://gitlab.com/Nesakko/blender-theme
About issue :
Going only very occasionally on GitHub, and almost never on GitLab, I will turn off GH/GL issues, prefer forking it or create your issues on Codeberg :)
This theme mimics the color scheme of the Breeze Dark KDE theme