/svot
In the game
Usage: /svot <number>|<index>|<text>|[font]|[size]|[bold]|[font colour]|[back colour]|[alignment]|[material size]
e.g. /svot 0|0|POLICE|Arial|32|1 (separated by | as in /ssot; /ssot shows the full help)
What it does
Not explained in detail yet.
Wiki