// This is a placeholder for JavaScript code that users can edit
      let mesh;

      // Initialize the 3D scene
      function init() {
        let geometry = new THREE.IcosahedronGeometry(0.075);
        let material = new THREE.MeshStandardMaterial({
          roughness: 0.2,
          metalness: 0.5
        });

        mesh = new THREE.Mesh(geometry, material);
        scene.add(mesh);
      }

      // Update the 3D scene based on time
      function update(time) {
        mesh.material.color.setHSL(time / 1000, 0.5, 0.5);
        mesh.position.y = Math.sin(time / 1000) * 0.25 + 0.25;
        mesh.rotation.set(time / 1000, time / 2000, 0);
      }