On the Subject of Floor Lights

There are lights on the floor.

See the original manual for the original instructions.

Color Effect
The tile that is lit and tiles that are adjacent to it are toggled. This effect does not loop.
The tile that is lit and tiles that are diagonal to it are toggled. This effect does not loop.
The tile that is lit and the tiles that surround it are toggled. This effect does not loop.
This tile will only show up after all modules have been solved. The tile will indicate that the toggle state of the tile is on.