Design a high-fidelity mobile UI for a kids' drawing and paint app. The layout should feature a large central white canvas area. At the bottom, include a row of 6 large, chunky, colorful circular buttons representing different paint colors. On the left side, place vertical icons for a brush, an eraser, and a bucket fill tool. The style should be playful and vibrant with rounded corners, soft drop shadows, and big, easy-to-tap buttons for small hands. High-resolution, clean vector style. Mehr sehen