KDE "Plasma/LookAndFeel" Splash Screen - How to set?

[reisholmes]

In the UI for KDE, I set the Global Theme > Splash Screen to the popular 'Kuro' theme. When I run my home manager configuration it shows the following message and resets the splash screen:

Activating onFilesChange
Activating reloadSystemd
Activating stylixLookAndFeel
KPackageStructure of KPluginMetaData(pluginId:"a2n.kuro", fileName: "/home/reis/.local/share/plasma/look-and-feel/a2n.kuro/metadata.json") does not match requested format "Plasma/LookAndFeel"
Successfully set the wallpaper for all desktops to the KPackage based /nix/store/1ndiiqxy0ckwaj3y1l82mwg33bbk06nk-stylix-kde-theme/share/wallpapers/stylix

I can see where it's getting these defaults from:

stylix/modules/kde/hm.nix

Line 183 in 7566bc0

lookAndFeelDefaults =

I know that the KDE section is still a work in progress, and the documentation is not ready yet, but is there any way to override the "LookAndFeel" defaults? I want to keep the rest of the theme but just customise this one aspect.

[trueNAHO]

CC: @danth, @rkuklik