plasma6 - Se7en theme

Hi *, I'd like to use the Se7en theme, that is available for plasma6 from the KDE store (https://store.kde.org/p/1407086). I tried to install it via systemsettings. The installation didn't fail, according to systemsettings the theme is installed, but it is not available - and it can't be found on disk in ./.local/share/plasma/desktoptheme. Any idea, what might be wrong here? System is openSUSE Tumbleweed 20240314 with plasma6 and X11. TIA. Bye. Michael.