Emoji Reaction Bubble

Emoji reaction bubble, a smooth matte disc 0.05 m across, 0.006 m thick, control tone (no yellow), with a simple thin-stroke face glyph floating on it, face: smile, grin, love, wow, sad, angry or wink. Accent: a thin glowing edge ring.

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