AUTOPAGE

AUTOPAGE is the image file used for the background of the full-screen Automap. Heretic and Hexen both provide an AUTOPAGE lump in their respective IWADs to to give the Automap a parchment-like appearance; however, the lump can be used in any ZDoom-supported game. Any supported image format can be used at any scale. Images with larger/smaller dimensions than the user's screen resolution will be scaled up or down accordingly.

The MAPINFO map definition key "MapBackground" allows to specify a different AUTOPAGE lump name for a given map.

Displaying AUTOPAGE can be turned on or off with "Draw map background" in Display options -> Automap options in the menu, or with the am_drawmapback console variable.