four-quadrant baseplate 3d model

Top‑down 2D schematic diagram of a flat square baseplate, 25 cm by 25 cm. The surface is completely flat with no height variation. Divide the square into four color regions suitable for AMS 4‑color 3D printing: - front left: light beige sand color - front right: warm yellow sand color - back left: light blue shallow ocean - back right: turquoise light ocean Use soft dividing lines between the regions, keep the style clean and minimalist, like a technical design reference for a 3D printing baseplate. No animals, no terrain relief, no text, just simple colored zones on a white background.