cartoon character of a young boy playing tennis, holding a racket and ball in his hand, wearing a white t-shirt with orange shorts, black background, vector illustration for a game app icon, simple design with flat colors and low details, no shadows, textures, shadings, reflections, gradients, or depth effects, 2D art style in the style of simple lineart with vector graphics and flat colors at low resolution and low contrast, simple design with no shadows, textures, or details, flat colors and vector graphics.