Pull a composed interface apart along its depth axis so each layer can be named. Spread is one continuous value: at 0 it is the finished interface seen face on, at 1 it is the labelled stack. The list carries every name, and hovering or focusing a row lights its plane and dims the rest.
pnpm dlx shadcn@latest add "https://caliperui.site/r/exploded-view.json"