Panels are a Portal element in Mari0: SE. They can be used to make non-portalable tiles toggle portalability on an input. For whatever reason, they can not be used to make portalable tiles non-portalable.
They were obviously an afterthought, having very basic graphics and a tooltip suggesting they would have been removed later.
Other Uses Edit
- They can be used to make tiles only portalable from one direction, even when Gel is applied.
- They can be combined with pre-placed Portals to create portal doors immune to player interference.