dconschat(8) on FreeBSD
The text 46a37c55b31d, as FreeBSD 12.0-RELEASE shipped it.
user interface to dcons(4)
Flags it lists
-
-1 -
-C -
-G -
-M -
-N -
-R -
-T -
-a -
-b -
-e -
-h -
-r -
-t -
-u -
-v -
-w