The 3d Module Expand icon shows a rounded 3D box with a faceted top and arrows pointing outward above, below, and on both sides. Drawn in the line style on a 48px grid with a 3px stroke for clear, friendly contours. Use it for 3D previews, expand controls, model viewers, spatial editors, and immersive interface layouts. It belongs to Plump Line set in the Plump family.