Prompt: A polished app icon for “Bé Mầm” (Little Sprout), a cute Vietnamese baby sprout mascot: round fresh green seedling with two soft leaves, tiny friendly face, subtle rosy cheeks, warm cream circular badge, clean bold silhouette, soft 3D clay-like illustration, gentle highlights, centered composition, no text, no letters, no watermark, flat solid magenta background for chroma-key removal, square 1024x1024.