Five candidate logos for the app that lays the eleven biological systems onto a board as a living body — paired rows around a central spine, threaded with reasons, verbs and immune subsystems. Each mark is pure SVG, holds down to 16 px, and carries a small motion of its own. Below the marks: the finalized icon set — the eleven system marks and their four immune subsystems (used in the app).
Every mark chosen for pracsys, in one place — the language shared with the logo above: 64×64, round strokes, cyan lead with coral · green · purple only where they carry meaning.