=== Special options ===

In addition to the regular, birth, and cheating options, there exist special 
options that can be used to modify the game to your liking.

The "hitpoint_warn" value, if non-zero, is the percentage of maximal hitpoints
at which the player is warned that he may die.  It is also used as the cut-off
for using red to display both hitpoints and mana.

The "delay_factor" value, if non-zero, will slow down the visual effects used
for missile, bolt, beam, and ball attacks.  The actual time delay is equal to
"delay_factor" cubed, in milliseconds.

=== Item squelch ===

The item squelch menu allows you to define what you view as junk.  It makes
the game more enjoyable by reducing the amount of time the you spend 
sifting through large piles of mostly useless items.

There are two ways in which items may be squelched. The first is called
squelch-by-type. In order to use this option, first you must choose one
of the object type menus available. Once the appropriate menu has been 
reached, you may toggle a bit that tells whether the object type is to 
be squelched or not. Objects that are squelched-by-type are completely
ignored by the player - they appear as dark '.'s on the map, and cannot
be interacted with (though the player can still look at them to see what's
there). Note that, In order to prevent (as much as possible) the squelch 
menus from giving away too much information about the game the actual name
of a flavored object will not appear until the player has seen and 
identified at least one example of the object.  

The second way in which items may be squelched occurs after the item is 
(pseudo)-identified.  Once you are aware of an item's quality, 
the item may be squelched if the quality isn't good enough.  This type 
of squelching is called squelch-by-quality. The squelch-by-quality menu
is reached by pressing "Q" from the main item squelch menu. 

=== Window flags ===

Some platforms support "sub-windows", which are windows which can be used to
display useful information generally available through other means.  The best
thing about these windows is that they are updated automatically (usually) to
reflect the current state of the world.  The "window options" can be used to
specify what should be displayed in each window.  The possible choices should
be pretty obvious.

Display inven/equip
    Display the player inventory (and sometimes the equipment).

Display equip/inven
    Display the player equipment (and sometimes the inventory).

Display player (basic)
    Display a brief description of the character, including a breakdown
    of the current player "skills" (including attacks/shots per round).

Display player (extra)
    Display a brief description of the character, including a breakdown
    of the contributions of each equipment item to various resistances
    and stats.

Display visible monsters
    Displays a color-coded list of all monsters in LOS. "Unknown" (no similar
    monster has been killed) monsters are grey, "known" monsters are violet
    if out-of-depth or white otherwise. Uniques are always light red. Note
    that using this display makes the game somewhat easier, and makes monsters
    that are disguised as objects/floors somewhat pointless, so use it at
    your own discretion.
    
Display messages
    Display the most recently generated "messages".

Display overhead view
    Display an overhead view of the entire dungeon.  This is very slow
    and does not even look very good.

Display monster recall
    Display a description of the most monster which has been most recently
    attacked, targetted, or examined in some way.

Display object recall
    Display a description of the most recently selected object.  Currently
    this only affects spellbooks and prayerbooks.  This window flag may be
    usefully combined with others, such as "monster recall".

Display snap-shot
    This window flag is currently unused.

Display borg messages
    This window flag is currently used only by the Borg.

Display borg status
    This window flag is currently used only by the Borg.