In the bottom left corner over the "Overlays" button it says "press spacebar to toggle overlays" but when I push spacebar, it just brings up my tunnel. Upon further inspection in the readme, the spacebar just lets you put tunnels down. Is it a typo in the game for the Overlays or was the spacebar for tunnels a new addition? If the latter, will there be/is there a hotkey for toggling overlays? Thanks in advance.