Install org.shift.icons as the look-and-feel icon theme while keeping the Plasma style on breeze-dark. Add the icon-theme coverage guard and CTest registration so shell, System Settings, KCM, and installed Plasma icon names do not silently fall back to missing Breeze-only assets.
Document the theme rules and add scoped REUSE metadata for the Phosphor-derived SVG glyphs.
The package shipped no overrides and only inherited the system
default theme, so it had no visible effect. Authoring a correct
FrameSvg override needs a separate, designed effort.
Add a wallpapers/SHIFT package with light and dark images. Set
Image=SHIFT in the look-and-feel defaults.
Plasma's org.kde.image backend requires a directory URL, not a
bare package ID, when writing Image= in a layout.js. Use
configure_file to stamp the resolved KDE_INSTALL_WALLPAPERDIR
path into the installed layout.js at build time.
