PX
The combination creates many possible effects. The exact appearance of the screen depends on the pen and background colors.
| PENREVERSE (PX) | |
| Syntax | PENREVERSE PX |
| Explanation | PENREVERSE reverses the pen and
background color when the turtle moves, drawing where
there are no lines and erasing previously drawn lines. The combination creates many possible effects. The exact appearance of the screen depends on the pen and background colors. |
| Examples | |
