diff --git a/gameboy/CHANGES.txt b/gameboy/CHANGES.txt
index c7fda1b..ab04694 100644
--- a/gameboy/CHANGES.txt
+++ b/gameboy/CHANGES.txt
@@ -1,4 +1,4 @@
-0.18 (2019-04)
+0.18 (2019-05-02)
 * PLUGE: Add PLUGE Contrast sub-test with shark graphic
   (Genesis 1.16 parity)
 * VWF: Glyph address calculation uses 16-bit shift instruction
@@ -8,6 +8,7 @@
 * gbcnamtool: Fix vertical flip and conversion without incruniq
 * Mention worse smearing on Game Boy Pocket and other help tweaks
 * More refactoring and other size optimizations (with ISSOtm's help)
+* Want your name in the credits? patreon.com/pineight
 
 0.17 (2018-06-30)
 * Help: Compress document titles with DTE
diff --git a/gameboy/src/helppages.txt b/gameboy/src/helppages.txt
index 62415ff..c3c7f27 100644
--- a/gameboy/src/helppages.txt
+++ b/gameboy/src/helppages.txt
@@ -687,9 +687,8 @@ Select: Show or hide
 
 == 144p Test Suite ==
 
-Ver. 0.18 (2019-04-2x)
-Sharpness brick wall;
-size optimization
+Ver. 0.18 (2019-05-02)
+Add PLUGE Contrast
 
 © 2011-2016
   Artemio Urbina
diff --git a/gba/CHANGES.txt b/gba/CHANGES.txt
index 895dd25..e0be0cd 100644
--- a/gba/CHANGES.txt
+++ b/gba/CHANGES.txt
@@ -1,6 +1,7 @@
-0.18 (2019-04)
+0.18 (2019-05-02)
 * PLUGE: Add PLUGE Contrast sub-test with shark graphic
   (Genesis 1.16 parity)
+* Want your name in the credits? patreon.com/pineight
 
 0.17 (2018-06-30)
 * Solid screen: Explain what a bad high voltage regulator does to
diff --git a/gba/src/helppages.txt b/gba/src/helppages.txt
index 1e069cf..0715dd1 100644
--- a/gba/src/helppages.txt
+++ b/gba/src/helppages.txt
@@ -614,8 +614,8 @@ Select: Show or hide
 
 == 160p Test Suite ==
 
-Version 0.18 (2019-04-2x)
-Add Sharpness brick wall
+Version 0.18 (2019-05-02)
+Add PLUGE Contrast
 
 © 2011-2016 Artemio Urbina
 © 2015-2019 Damian Yerrick
diff --git a/nes/CHANGES.txt b/nes/CHANGES.txt
index 7ae1737..95a4b99 100644
--- a/nes/CHANGES.txt
+++ b/nes/CHANGES.txt
@@ -1,16 +1,16 @@
-0.18 (2019-04)
+0.18 (2019-05-02)
 * Help: Compress text with DTE
 * Help: Update Gus look to match GBA
 * PLUGE: Add PLUGE Contrast sub-test with shark graphic
   (Genesis 1.16 parity)
+* Overscan: Select to invert grays; border contrasts with BG
+* Sharpness: Pixel-align emblem at center
+* Manual lag: Remove misleading DDR-style grading
 * Linearity, Sharpness, Stopwatch, Crosstalk: Compress map with
   new iu53 codec
 * Move several tests' code to UNROM bank 2 to make room in fixed bank
 * Linearity: Construct grid CHR from gridless CHR
-* Sharpness: Pixel-align emblem at center
 * Stopwatch: Reduce tiles of sprite circles (the "hand")
-* Overscan: Select to invert grays; border contrasts with BG
-* Manual lag: Remove misleading DDR-style grading
 * Move rectfill-based screen layouts to UNROM bank 1
 * Organize "library" code shared by my other projects into a
   separate part of the fixed bank
diff --git a/nes/src/backlight.s b/nes/src/backlight.s
index c8c2da7..2da3854 100644
--- a/nes/src/backlight.s
+++ b/nes/src/backlight.s
@@ -37,14 +37,15 @@ sprite_hide = test_state+3
 
 restart:
   lda #0
-  sta OAM+2
   sta PPUMASK
   ldx #$1F
   ldy #$C0
   lda #4
   jsr unpb53_file
+  lda #2
+  sta OAM+2  ; set the sprite's palette to same as whites of Gus's eyes
   ldx #4
-  jsr ppu_clear_oam
+  jsr ppu_clear_oam  ; clear the rest of sprites
 loop:
   lda sprite_x
   sta OAM+3
diff --git a/nes/src/helppages.txt b/nes/src/helppages.txt
index 0da373f..818044e 100644
--- a/nes/src/helppages.txt
+++ b/nes/src/helppages.txt
@@ -101,8 +101,8 @@ Use it with various palettes
 to check contrast and
 brightness.
 
-A: Switch palette among normal,
-  dark, or light colors
+A: Switch palette among
+  normal, dark, or light colors
 Select: Return to PLUGE
 
 == Gradient color bars ==
@@ -750,7 +750,7 @@ less than 5 lines (317 us).
 
 == 240p Test Suite ==
 
-Version 0.18 (2019-04-2x)
+Version 0.18 (2019-05-02)
 PLUGE Contrast; better
 compression