diff --git a/SF/ASM/IRQ.ASM b/SF/ASM/IRQ.ASM
index 0cc5455..505cc8e 100644
--- a/SF/ASM/IRQ.ASM
+++ b/SF/ASM/IRQ.ASM
@@ -1105,29 +1105,29 @@ irqbit3	lda	noirqbit3
 	bcs	.skipt
 	dmacgram	0,5*16,thundercol,32
 .skipt
+	IFNE	shieldboostcolorbox
 	lda	#2*16+4
 	sta	cgadd
 	lda	shieldup
 	beq	.nope
-	lda	#$e0
+	lda	#wireframeshieldmetercolor&$FF
 	sta	cgdata
-	lda	#$7e
+	lda	#wireframeshieldmetercolor>>8
 	sta	cgdata
 	bra	.conti
 .nope
-	IFNE	shieldboostcolorbox
 ;!! Unnecessary color write to palette line 2.
 ; This is the exact same as a color that is already
 ; loaded into CGRAM in most level palettes,
 ; and is used for the "colored boxes" that
 ; are used in the shield/boost box translucency effect.
-; Removing this frees up line 2 of CGRAM for more background
-; color palettes, if shieldboostcolorbox is off.
-	lda	#$1f
-	sta	cgdata
-	stz	cgdata
-	ENDC
+; Removing this allows you to use a different color in the shield box
+; in each background, if shieldboostcolorbox is on.
+;	lda	#$1f
+;	sta	cgdata
+;	stz	cgdata
 .conti
+	ENDC
 
 	lda	bg3scrollflag
 	beq	.nobg3
diff --git a/SF/ASM/MAIN.ASM b/SF/ASM/MAIN.ASM
index b4398db..cc7f882 100644
--- a/SF/ASM/MAIN.ASM
+++ b/SF/ASM/MAIN.ASM
@@ -1836,6 +1836,7 @@ SetCharMapgame_l
 	bne	.lolv
 
 	IFNE	shieldboostcolorbox
+	; Change palette indices for damage and boost meters in BG1 tilemap
 	; why was this done in the first place? added a flag for vanilla game purposes
 	; witchcraft
 	lda.l	m_meters
diff --git a/SF/ASM/TRANS.ASM b/SF/ASM/TRANS.ASM
index 96e170a..795b8c9 100644
--- a/SF/ASM/TRANS.ASM
+++ b/SF/ASM/TRANS.ASM
@@ -606,6 +606,10 @@ dmahpos	ai8
 
 ;------------------------------------------------------------------------------
 calcmeters	a8i16
+	ifeq	shieldboostcolorbox
+	lda	shieldup
+	sta.l	m_shieldup
+	endc
 	ldx	pcboxobj_b
 	lda	al_HP,x
 	bpl	.ok
diff --git a/SF/CONFIG/GRAPHICS.INC b/SF/CONFIG/GRAPHICS.INC
index 96e8bd7..55a6c84 100644
--- a/SF/CONFIG/GRAPHICS.INC
+++ b/SF/CONFIG/GRAPHICS.INC
@@ -27,11 +27,18 @@ titlelogo	equ 1
 ; [0 = NTSC, 1 = PAL] (DOES NOT AFFECT JP)
 controlsscreenpal	equ	0
 
-; Enable colored window over shield and boost meters as in vanilla.
-; Set this to 0 if moving meter positions.
+; Enable colored window to change from palette line 7 to 2 over shield and boost meters as in vanilla.
+; Set this to 0 if moving meter positions, or if using all 15 colors on palette line 2 instead of 12.
+; If set to 1, palette line 2 color $d is the outlines' color,
+; palette line 2 color 4 is the shield meter's color and palette line 2 color 7 is the boost meter's color.
+; Those can be changed by changing the background palette.
+; If set to 0, they instead use colors from palette line 7.
 ; [0 = off, 1 = on]
 shieldboostcolorbox	equ	0
 
+; Shield meter's color when wireframe is activated. Have to set shieldboostcolorbox to 1 to work.
+wireframeshieldmetercolor   equ $7ee0
+
 ; Hides the HUD when a boss is defeated.
 ; [0 = off, 1 = on]
 hidehudonbossdeath	equ	1
diff --git a/SF/EXT/MARIO.EXT b/SF/EXT/MARIO.EXT
index 3158b92..161bf38 100644
--- a/SF/EXT/MARIO.EXT
+++ b/SF/EXT/MARIO.EXT
@@ -41,6 +41,9 @@
 	global	m_planetstars,m_particlesON,m_defaultID
 	global	m_hudcolour,m_hudflags
 	global	mallrotzsort,mdrawsprite32
+	ifeq	shieldboostcolorbox
+	global	m_shieldup
+	endc
 
 
 	ifne	mario_stats3d
diff --git a/SF/MARIO/MDRAWLIS.MC b/SF/MARIO/MDRAWLIS.MC
index 8cf39b4..0212c10 100644
--- a/SF/MARIO/MDRAWLIS.MC
+++ b/SF/MARIO/MDRAWLIS.MC
@@ -10,6 +10,9 @@
 	zmalc	m_damage,2
 	zmalc	m_boostcnt,2
 	zmalc	m_boostanim,2
+	ifeq	shieldboostcolorbox
+	zmalc	m_shieldup,2
+	endc
 
 rlistptr	equr	r1
 rzstore	equr	r2
@@ -798,7 +801,11 @@ mboostmeter
 	move	r2,#boosty+2
 	move	r4,#boostheight-4
 
+	IFNE	shieldboostcolorbox
 	move	r0,#7
+	ELSEIF
+	move	r0,#6
+	ENDC
 	mcall	mdrawsolidbox
 	nop
 	
@@ -902,7 +909,16 @@ mdamagemeter
 	IFNE	shieldboostcolorbox
 	move	r0,#4
 	ELSEIF
+	move	r0,[m_shieldup]	; if wireframe shield activated:
+	dec	r0	; instruction above dosn't set zero flag
+	bne	.nowireframe
+	nop
+	move	r0,#7
+	bra	.pickedcolor
+	nop
+.nowireframe
 	move	r0,#2
+.pickedcolor
 	ENDC
 	mcall	mdrawsolidbox
 	nop