Group membership drawn as an implicit surface: each item is a charge in an inverse-square field, and a marching-squares isoline at F = 1 is stroked as a bare outline, so items in the same group share one necked contour and an item that leaves visibly pinches off into its own closed loop.
pnpm dlx shadcn@latest add "https://design.helpmarq.com/r/status-metaball-merge.json"