Characters used to border a window. Eight characters that Zim is to use to draw the border of a text-class window.
An 8-character string, containing one character for each of the four corners, and one character for each of the four sides. The characters are entered in the order:
1. Upper left-hand corner
2. Upper side
3. Upper right-hand corner
4. Right side
5. Left side
6. Lower left-hand corner
7. Lower side
8. Lower right-hand corner
Any characters may be used. Any or all of the characters may be a space.
It is required when Bord is set to Yes.