When "Reset All" is used in Preferences, restoreDefaults() clears the
entire User parameter tree via ParameterManager::Clear(). Widgets then
fall back to upstream FreeCAD hardcoded defaults (e.g. light theme,
default units) instead of Kindred Create defaults.
After clearing, apply the KindredCreate preference pack to restore
Create-specific baseline settings (Catppuccin Mocha theme, toolbar
layout, unit preferences, etc.).