Solid

Solid
ZZT-OOP name	solid
Internal ID	21 (0x15)
Character	#char 219 █ (0xDB)
Category	terrain
Stats?	no
Other traits
Effect on movement	wall
Destructible?	no
Uses ZZT-OOP color names?	yes

The solid element is one of the built-in wall elements in ZZT. It cannot be moved and is impervious to all damage. It is functionally identical to the normal except for using #char 219 █ (0xDB), resulting in a solid block of the foreground color in most fonts. Solids can be placed in all of the default ZZT-OOP colors and can be placed in any of the available colors with an external editor. However, should a solid be targeted by a #put or a #change, care should be taken to make sure its background color is what the designer wants it to be, even if it is not initially visible.