Create a cute and friendly cartoon-style truck illustration, suitable for a 6-12 year-old children's coloring book. The truck should be viewed from a 45-degree angle, with all lines drawn in black ink, following the coloring book style. Use thicker lines for the truck's outlines and softer lines for its endearing details. Avoid using any other colors, and keep the background white with no added text. --v 5.2