TabFilling
This function has not been fully integrated into the long-term Wolfram Language, and is subject to change.
is an option for character selections that specifies how a 
character is represented on the screen.
Details
- TabFilling can be set to any character. With the default setting TabFilling->None,
characters appear as whitespace. - If TabFilling is set to a string, such as ".", the character or characters in the string will be repeated as necessary to fill the available space.
- Other common settings are Underline and GrayUnderline.
Tutorials
Related Guides
Introduced in 1999
(4.0)