munch(6x) on Linux
The text facff7b4250a, as Debian 4.0 (Etch) shipped it.
munching squares screen hack
Flags it lists
-
-delay -
-install -
-logminwidth -
-mono -
-no-shift -
-no-xor -
-root -
-shift -
-visual -
-window -
-xor