 = fullBarHeight/Math.min(listLength > 0 ? listLength : 1, 4);
          const barSpace = fullBarHeight - barHeight;
          ctx.fillStyle = '#42a5f5';
          ctx.fillRect(menuWidth*0.99, mesh.scrollIndex*barSpace/(listLength > 1 ? (listLength-1) : 1), menuWidth*0.01, barHeight);
        };

        for (let i = 0; i < iconMeshes.length; i++) {
          const iconMesh = iconMeshes[i];
          if (iconMesh.parent) {
            iconMesh.parent.remove(iconMesh);
          }
        }
        if (optio