diff --git a/examples/framerate.py b/examples/framerate.py
index fe5bd98..333ebfa 100644
--- a/examples/framerate.py
+++ b/examples/framerate.py
@@ -43,9 +43,9 @@ Running at: {}MHz
 # Create ST7735 LCD display class.
 disp = ST7735.ST7735(
     port=0,
-    cs=ST7735.BG_SPI_CS_FRONT,
+    cs=ST7735.BG_SPI_CS_FRONT,  # BG_SPI_CSB_BACK or BG_SPI_CS_FRONT
     dc=9,
-    backlight=18,
+    backlight=19,               # 18 for back BG slot, 19 for front BG slot.
     rotation=90,
     spi_speed_hz=SPI_SPEED_MHZ * 1000000
 )
diff --git a/examples/gif.py b/examples/gif.py
index db9d485..051d9ca 100644
--- a/examples/gif.py
+++ b/examples/gif.py
@@ -39,9 +39,9 @@ else:
 # Create TFT LCD display class.
 disp = ST7735.ST7735(
     port=0,
-    cs=ST7735.BG_SPI_CS_FRONT,
+    cs=ST7735.BG_SPI_CS_FRONT,  # BG_SPI_CSB_BACK or BG_SPI_CS_FRONT
     dc=9,
-    backlight=18,
+    backlight=19,               # 18 for back BG slot, 19 for front BG slot.
     spi_speed_hz=4000000
 )
 
diff --git a/examples/image.py b/examples/image.py
index ab76efa..8f1a5f1 100644
--- a/examples/image.py
+++ b/examples/image.py
@@ -39,9 +39,9 @@ image_file = sys.argv[1]
 # Create ST7735 LCD display class.
 disp = ST7735.ST7735(
     port=0,
-    cs=ST7735.BG_SPI_CS_FRONT,
+    cs=ST7735.BG_SPI_CS_FRONT,  # BG_SPI_CSB_BACK or BG_SPI_CS_FRONT
     dc=9,
-    backlight=18,
+    backlight=19,               # 18 for back BG slot, 19 for front BG slot.
     rotation=90,
     spi_speed_hz=4000000
 )
diff --git a/examples/scrolling-text.py b/examples/scrolling-text.py
index 7472ade..262718e 100644
--- a/examples/scrolling-text.py
+++ b/examples/scrolling-text.py
@@ -11,9 +11,9 @@ MESSAGE = "Hello World! How are you today?"
 # Create ST7735 LCD display class.
 disp = ST7735.ST7735(
     port=0,
-    cs=ST7735.BG_SPI_CS_FRONT,
+    cs=ST7735.BG_SPI_CS_FRONT,  # BG_SPI_CSB_BACK or BG_SPI_CS_FRONT
     dc=9,
-    backlight=18,
+    backlight=19,               # 18 for back BG slot, 19 for front BG slot.
     rotation=90,
     spi_speed_hz=10000000
 )
diff --git a/examples/shapes.py b/examples/shapes.py
index e8596e0..341338c 100644
--- a/examples/shapes.py
+++ b/examples/shapes.py
@@ -35,9 +35,9 @@ breakout into the rear slot.
 # Create ST7735 LCD display class.
 disp = ST7735.ST7735(
     port=0,
-    cs=ST7735.BG_SPI_CS_FRONT,
+    cs=ST7735.BG_SPI_CS_FRONT,  # BG_SPI_CSB_BACK or BG_SPI_CS_FRONT
     dc=9,
-    backlight=18,
+    backlight=19,               # 18 for back BG slot, 19 for front BG slot.
     rotation=90,
     spi_speed_hz=4000000
 )