On this image you can see I extracted the lines and in the sub tool detail, the outline is at 99, but you can modify at will. You can also rotate it. Since I locked it in the sub tool detail, unlock it prior to modifying the width, length or height of the colony.

I made it in Blender and exported in .glb format. Texture free, it could be used as an inspirational 3D environment for a colony on an inhospitable planet.
