Comment more ROM labels as unreferenced

(Some unreferenced labels are above code which is still used via fallthrough!)

engine/events/odd_egg.asm

@@ -22,7 +22,7 @@ _GiveOddEgg:
 	jr z, .done
 .not_done
 
-	; Break when [hRandom] <= de.
+	; Break when the random word <= the next probability in de.
 	ldh a, [hRandomSub]
 	cp d
 	jr c, .done

engine/events/std_scripts.asm

@@ -14,7 +14,7 @@ StdScripts::
 	add_stdscript TownMapScript
 	add_stdscript WindowScript
 	add_stdscript TVScript
-	add_stdscript HomepageScript
+	add_stdscript HomepageScript ; unused
 	add_stdscript Radio1Script
 	add_stdscript Radio2Script
 	add_stdscript TrashCanScript

engine/menus/debug.asm

@@ -297,15 +297,15 @@ Function81adb:
 	hlcoord 1, 3
 	lb bc, 7, 18
 	ld a, DEBUGTEST_WHITE
-	call Bank20_FillBoxWithByte
+	call DebugColor_FillBoxWithByte
 	hlcoord 11, 0
 	lb bc, 2, 3
 	ld a, DEBUGTEST_LIGHT
-	call Bank20_FillBoxWithByte
+	call DebugColor_FillBoxWithByte
 	hlcoord 16, 0
 	lb bc, 2, 3
 	ld a, DEBUGTEST_DARK
-	call Bank20_FillBoxWithByte
+	call DebugColor_FillBoxWithByte
 	call Function81bc0
 	call Function81bf4
 	ld a, [wcf66]
@@ -880,7 +880,7 @@ Function81ee3:
 	jr nz, .asm_81ee3
 	ret
 
-Bank20_FillBoxWithByte:
+DebugColor_FillBoxWithByte:
 ; For some reason, we have another copy of FillBoxWithByte here
 .row
 	push bc

engine/overworld/map_setup.asm

@@ -69,7 +69,7 @@ MapSetupCommands:
 	dba FadeMapMusicAndPalettes ; 06
 	dba PlayMapMusicBike ; 07
 	dba ForceMapMusic ; 08
-	dba FadeInMusic ; 09
+	dba FadeInToMusic ; 09
 	dba LoadBlockData ; 0a (callback 1)
 	dba LoadConnectionBlockData ; 0b
 	dba SaveScreen ; 0c