Changed and documented the change of XP bar color to blue

data/campaigns/Under_the_Burning_Suns/units/monsters/Dust_Devil.cfg

@@ -79,6 +79,10 @@
         id=Dust1
         max_times=4
         description= _ "a stronger Dust Devil"
+
+        # Make the XP bar blue instead of purple.
+        major_amla=yes
+
         [effect]
             apply_to=attack
             range=melee
@@ -98,6 +102,7 @@
         id=Dust2
         max_times=2
         description= _ "a taller Dust Devil"
+        major_amla=yes
         [effect]
             apply_to=attack
             range=ranged

data/campaigns/Under_the_Burning_Suns/units/quenoth/Youth.cfg

@@ -12,6 +12,7 @@ _"Nym is Kaleh’s childhood friend, a young, rebellious lady with quick wits an
 "+{NYM_DESCRIPTION}#enddef
 
 #define HEAL_EFFECTS
+    # Make the XP bar blue instead of purple.
     major_amla=yes
     [effect]
         apply_to=hitpoints