[Maps] Does sand exist?

I been trying to create a map with the "Sand" color from the wiki but it won't show up. It's on the wiki and I saw it on a server once (although it was modded).

 

The server you saw it in is probably funCTF, and I believe that it has gravity. The fact that it moves and interacts in a weird way with hooks, coins etc... means it's a blob, and not a tile (all tiles are hardcoded - at least at this point in time, devs might add support for that).

You can also see the Satchel is in there, and it is not yet programmed properly, so that's that.