Added a patch to allow setting custom colors for object outlines

Added a tweak to ObjCanSeeObj_ShootThru_Fix to allow critters to see
through other critters.

Fixed the internal variable for Horrigan encounter always being reset if
DisableHorrigan=0 (commit 74d3cb9)

Corrected some code.

artifacts/ddraw.ini

@@ -106,7 +106,7 @@ AllowSoundForFloats=0
 AllowDShowSound=0
 
 ;Set to 1 to override the default music path with data\sound\music\ if music_path is not present in the cfg
-;Set to 2 to overwrite all occurances of the music path
+;Set to 2 to overwrite all occurrences of the music path
 OverrideMusicDir=1
 
 ;XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
@@ -184,6 +184,7 @@ HighlightCorpses=1
 ;16 - bright yellow
 ;32 - dark yellow
 ;64 - purple
+;You can set a custom color from the game palette by multiplying the color index value by 256 (available since sfall 3.8.27)
 OutlineColor=16
 
 ;A key to press to reload your currently equipped weapon or use the active item
@@ -560,8 +561,8 @@ SuperStimExploitFix=0
 InventoryApCost=4
 QuickPocketsApCostReduction=2
 
-;Set to 1 to allow objects seeing through other objects that have their ShootThru flag set
-;Note that enabling this option can cause unexpected NPC behavior in some situations
+;Set to 1 to fix obj_can_see_obj script function to allow critters to see through other critters and objects with 'ShootThru' flag set
+;Note that enabling this option can cause unexpected NPC behavior in some situations, e.g. able to attack or enter into a dialogue with the player behind some objects
 ObjCanSeeObj_ShootThru_Fix=0
 
 ;Set to 1 to fix the broken obj_can_hear_obj script function