- Open System Settings
- Go to "Appearance"
- Click on "Get New Global Themes"
- Search for "Nostalgia"
- Click on "Install"
- Apply the theme
- Clone this repository
git clone https://github.com/prayag2/kde_nostalgia && cd kde_nostalgia/kde-store-archives/global-theme
- Install using the script
kpackagetool5 -i nostalgia_global.tar.gz