Stepper

Stepper, a matte pill 0.12 x 0.04 m, 0.004 m thick, with a thin minus glyph at the left, a plus at the right and a value decal slot between; active (minus, plus) picks the end the state lands on. Hover floats that end up and glows; pressed settles it.

风格：low-poly, flat-shaded vertex colors, no textures, 2 materials: the shared opaque one plus a distinct surface (glass, water or chrome), which stays its own mesh through mergeAssets rather than merging into the rest; shares palette and scale with its kit