godot/editor/icons/BoxOccluder3D.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path fill="#ffca5f" d="m8 .889-.506.254A4.5 4.5 0 1 1 1 7.314v4.297l7 3.5 7-3.5V4.39z"/></svg>