This is an RGBA image with transparency

This is an RGBA image with transparency. Create a cute 3D robot mascot holding a glowing paintbrush. The robot has rounded white metallic surfaces, purple LED details, and a friendly expression. The image has an alpha channel and the background is fully transparent. Use clean sticker-like edges, polished 3D rendering, and soft internal lighting. Do not add a background, text, watermark, border, or extra objects.