Record the parity frames with stamps in them

Stamps were drawn fully transparent until f1194d2, so the recorded frames had
been holding the library to a stage where nothing stamped ever appeared.

Four of them move: stamps, and then display, debug and camera, which follow it.
A stamp is permanent and VisualProbe does not erase the background between
scenes, so the two prints the stamps scene leaves behind sit in every frame
after it. All four differ in one region and the same one - 229x104 at 56,141,
the prints themselves. The other nineteen came back byte-identical.

Author: mikebarkmin