Tab Bar

Tab bar, a matte pill 0.004 m thick holding tabs (2-6) 0.12 x 0.04 m label decal slots, ends unchanged as it grows; active picks the open tab, marked by a smooth pill floating over it with a soft accent glow. Hover floats that pill up; 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