diff --git a/examples/ImgViewer/ImgViewerPng/ImgViewerPng.ino b/examples/ImgViewer/ImgViewerPng/ImgViewerPng.ino
index a92126a4..6fa814f8 100644
--- a/examples/ImgViewer/ImgViewerPng/ImgViewerPng.ino
+++ b/examples/ImgViewer/ImgViewerPng/ImgViewerPng.ino
@@ -184,7 +184,7 @@ void setup()
   gfx->fillScreen(BLACK);
   for (int16_t x = 0; x < w; x += 5)
   {
-    gfx->drawFastVLine(x, 0, h, PINK);
+    gfx->drawFastVLine(x, 0, h, PALERED);
   }
 
 #ifdef GFX_BL
diff --git a/examples/MultipleDisplay/MultiplePDQgraphicstest/MultiplePDQgraphicstest.ino b/examples/MultipleDisplay/MultiplePDQgraphicstest/MultiplePDQgraphicstest.ino
index 64895676..710b65a4 100644
--- a/examples/MultipleDisplay/MultiplePDQgraphicstest/MultiplePDQgraphicstest.ino
+++ b/examples/MultipleDisplay/MultiplePDQgraphicstest/MultiplePDQgraphicstest.ino
@@ -375,7 +375,7 @@ int32_t testText()
   gfx->println(F("Size 8"));
 
   gfx->setTextSize(9);
-  gfx->setTextColor(PINK);
+  gfx->setTextColor(PALERED);
   gfx->println(F("Size 9"));
 
   return micros() - start;
diff --git a/examples/PDQgraphicstest/PDQgraphicstest.ino b/examples/PDQgraphicstest/PDQgraphicstest.ino
index cc03eeba..0aef2328 100644
--- a/examples/PDQgraphicstest/PDQgraphicstest.ino
+++ b/examples/PDQgraphicstest/PDQgraphicstest.ino
@@ -362,7 +362,7 @@ int32_t testText()
   gfx->println(F("Size 8"));
 
   gfx->setTextSize(9);
-  gfx->setTextColor(PINK);
+  gfx->setTextColor(PALERED);
   gfx->println(F("Size 9"));
 
   return micros() - start;
diff --git a/src/Arduino_GFX.h b/src/Arduino_GFX.h
index 3f8d8bba..7352fbb0 100644
--- a/src/Arduino_GFX.h
+++ b/src/Arduino_GFX.h
@@ -50,7 +50,7 @@
 #define RGB565_WHITE RGB565(255, 255, 255)
 #define RGB565_ORANGE RGB565(255, 165, 0)
 #define RGB565_GREENYELLOW RGB565(173, 255, 41)
-#define RGB565_PINK RGB565(255, 130, 198)
+#define RGB565_PALERED RGB565(255, 130, 198)
 
 // Color definitions
 #ifndef DISABLE_COLOR_DEFINES
@@ -72,7 +72,7 @@
 #define WHITE RGB565_WHITE
 #define ORANGE RGB565_ORANGE
 #define GREENYELLOW RGB565_GREENYELLOW
-#define PINK RGB565_PINK
+#define PALERED RGB565_PALERED
 #endif
 
 // Many (but maybe not all) non-AVR board installs define macros
diff --git a/src/databus/Arduino_Wire.cpp b/src/databus/Arduino_Wire.cpp
index 4b21a233..9525794c 100644
--- a/src/databus/Arduino_Wire.cpp
+++ b/src/databus/Arduino_Wire.cpp
@@ -54,7 +54,7 @@ void Arduino_Wire::write(uint8_t d)
   _wire->write(d);
 }
 
-void Arduino_Wire::writeCommand(uint8_t c)
+void Arduino_Wire::writeCommand(uint8_t)
 {
   // println("Wire::writeCommand()");
   // not implemented.
@@ -85,19 +85,19 @@ void Arduino_Wire::writePixels(uint16_t *, uint32_t)
 }
 
 #if !defined(LITTLE_FOOT_PRINT)
-void Arduino_Wire::writeBytes(uint8_t *data, uint32_t len)
+void Arduino_Wire::writeBytes(uint8_t *, uint32_t)
 {
   // println("Wire::writeBytes()");
   // not implemented
 }
 #endif // !defined(LITTLE_FOOT_PRINT)
 
-void Arduino_Wire::writeRegister(uint8_t reg, uint8_t *data, size_t len)
+void Arduino_Wire::writeRegister(uint8_t, uint8_t *, size_t)
 {
   // println("Wire::writeRegister()");
 }
 
-uint8_t Arduino_Wire::readRegister(uint8_t reg, uint8_t *data, size_t len)
+uint8_t Arduino_Wire::readRegister(uint8_t, uint8_t *, size_t)
 {
   // println("Wire::readRegister()");
   return 0;
diff --git a/src/databus/Arduino_XCA9554SWSPI.cpp b/src/databus/Arduino_XCA9554SWSPI.cpp
index dac22118..83acdbc9 100644
--- a/src/databus/Arduino_XCA9554SWSPI.cpp
+++ b/src/databus/Arduino_XCA9554SWSPI.cpp
@@ -1,9 +1,9 @@
 #include "Arduino_XCA9554SWSPI.h"
 
-//#define XCA9554_DEBUG
+// #define XCA9554_DEBUG
 
 Arduino_XCA9554SWSPI::Arduino_XCA9554SWSPI(int8_t rst, int8_t cs, int8_t sck, int8_t mosi, TwoWire *wire, uint8_t i2c_addr)
-  : _rst(rst), _cs(cs), _sck(sck), _mosi(mosi), _wire(wire), _i2c_addr(i2c_addr)
+    : _rst(rst), _cs(cs), _sck(sck), _mosi(mosi), _wire(wire), _i2c_addr(i2c_addr)
 {
 }
 
@@ -71,14 +71,16 @@ void Arduino_XCA9554SWSPI::writeCommand(uint8_t c)
   {
     if (c & bit)
     {
-      if (last_databit != 1) {
+      if (last_databit != 1)
+      {
         last_databit = 1;
         this->digitalWrite(_mosi, last_databit);
       }
     }
     else
     {
-      if (last_databit != 0) {
+      if (last_databit != 0)
+      {
         last_databit = 0;
         this->digitalWrite(_mosi, last_databit);
       }
@@ -102,14 +104,20 @@ void Arduino_XCA9554SWSPI::write(uint8_t d)
   this->digitalWrite(_sck, 1);
 
   uint8_t bit = 0x80;
-  while (bit) {
-    if (d & bit) {
-      if (last_databit != 1) {
+  while (bit)
+  {
+    if (d & bit)
+    {
+      if (last_databit != 1)
+      {
         last_databit = 1;
         this->digitalWrite(_mosi, last_databit);
       }
-    } else {
-      if (last_databit != 0) {
+    }
+    else
+    {
+      if (last_databit != 0)
+      {
         last_databit = 0;
         this->digitalWrite(_mosi, last_databit);
       }
@@ -130,7 +138,7 @@ void Arduino_XCA9554SWSPI::writeRepeat(uint16_t, uint32_t)
   // not implemented
 }
 
-void Arduino_XCA9554SWSPI::writeBytes(uint8_t *data, uint32_t len)
+void Arduino_XCA9554SWSPI::writeBytes(uint8_t *, uint32_t)
 {
   // not implemented
 }
@@ -171,7 +179,8 @@ uint8_t Arduino_XCA9554SWSPI::readRegister(uint8_t reg, uint8_t *data, size_t le
   _wire->endTransmission();
   _wire->requestFrom(_i2c_addr, len);
   size_t index = 0;
-  while (index < len) {
+  while (index < len)
+  {
     data[index++] = _wire->read();
 #ifdef XCA9554_DEBUG
     // printf("0x%02X, ", data[index-1]);
@@ -189,13 +198,18 @@ void Arduino_XCA9554SWSPI::pinMode(uint8_t pin, uint8_t mode)
   {
     uint8_t port = 0;
     this->readRegister(XCA9554_CONFIG_PORT_REG, &port, 1);
-    if (mode == OUTPUT) {
+    if (mode == OUTPUT)
+    {
       port &= ~(1UL << pin);
-    } else {
+    }
+    else
+    {
       port |= (1UL << pin);
     }
     this->writeRegister(XCA9554_CONFIG_PORT_REG, &port, 1);
-  } else {
+  }
+  else
+  {
     // println("xCA9554 not found");
   }
 }
@@ -207,7 +221,8 @@ void Arduino_XCA9554SWSPI::digitalWrite(uint8_t pin, uint8_t val)
     uint8_t reg_data = output_buf;
 
     reg_data &= ~(1UL << pin);
-    if (val == HIGH) {
+    if (val == HIGH)
+    {
       reg_data |= (1UL << pin);
     }
     this->writeRegister(XCA9554_OUTPUT_PORT_REG, &reg_data, 1);
@@ -226,7 +241,7 @@ int Arduino_XCA9554SWSPI::digitalRead(uint8_t pin)
     uint8_t port = 0;
     this->readRegister(XCA9554_INPUT_PORT_REG, &port, 1);
     // printf("Read 0x%02X\n", port);
-    return(port & (1UL << pin)) ? HIGH : LOW;
+    return (port & (1UL << pin)) ? HIGH : LOW;
   }
   else
   {
diff --git a/src/databus/Arduino_XL9535SWSPI.cpp b/src/databus/Arduino_XL9535SWSPI.cpp
index 73fe8cf7..8c56ee60 100644
--- a/src/databus/Arduino_XL9535SWSPI.cpp
+++ b/src/databus/Arduino_XL9535SWSPI.cpp
@@ -107,7 +107,7 @@ void Arduino_XL9535SWSPI::writeRepeat(uint16_t, uint32_t)
   // not implemented
 }
 
-void Arduino_XL9535SWSPI::writeBytes(uint8_t *data, uint32_t len)
+void Arduino_XL9535SWSPI::writeBytes(uint8_t *, uint32_t)
 {
   // not implemented
 }
diff --git a/src/display/Arduino_SSD1306.cpp b/src/display/Arduino_SSD1306.cpp
index 37041b82..9e96d0c8 100644
--- a/src/display/Arduino_SSD1306.cpp
+++ b/src/display/Arduino_SSD1306.cpp
@@ -102,13 +102,14 @@ bool Arduino_SSD1306::begin(int32_t speed)
   return true;
 }
 
-void Arduino_SSD1306::setBrightness(uint8_t brightness){
-    // _sendCommand(SSD1306_SETCONTRAST);
-    // ??? _sendCommand((brightness < 50) ? 0 : _contrast); ???
-    // _sendCommand((brightness < 50) ? 0 : 0x8f);
-}; // setBrightness
+void Arduino_SSD1306::setBrightness(uint8_t /* brightness */)
+{
+  // _sendCommand(SSD1306_SETCONTRAST);
+  // ??? _sendCommand((brightness < 50) ? 0 : _contrast); ???
+  // _sendCommand((brightness < 50) ? 0 : 0x8f);
+}
 
-void Arduino_SSD1306::drawBitmap(int16_t xStart, int16_t yStart, uint8_t *bitmap, int16_t w, int16_t h, uint16_t color, uint16_t bg)
+void Arduino_SSD1306::drawBitmap(int16_t xStart, int16_t yStart, uint8_t *bitmap, int16_t w, int16_t h, uint16_t /* color */, uint16_t /* bg */)
 {
   printf("SSD1306::drawBitmap %d/%d w:%d h:%d\n", xStart, yStart, w, h);
   uint16_t bufferLength = TWI_BUFFER_LENGTH;
@@ -152,7 +153,7 @@ void Arduino_SSD1306::drawBitmap(int16_t xStart, int16_t yStart, uint8_t *bitmap
     _bus->write(SSD1306_COLUMNADDR);
     _bus->write(_colStart);
     _bus->write(_colEnd);
-     // set column
+    // set column
     _bus->endWrite();
 
     // send out page data
@@ -187,7 +188,7 @@ void Arduino_SSD1306::drawIndexedBitmap(int16_t, int16_t, uint8_t *, uint16_t *,
   // println("SSD1306::Not Implemented drawIndexedBitmap()");
 }
 
-void Arduino_SSD1306::draw3bitRGBBitmap(int16_t, int16_t, uint8_t *bitmap, int16_t w, int16_t h)
+void Arduino_SSD1306::draw3bitRGBBitmap(int16_t, int16_t, uint8_t *, int16_t, int16_t)
 {
   // println("SSD1306::Not Implemented draw3bitRGBBitmap()");
 }
@@ -202,9 +203,9 @@ void Arduino_SSD1306::draw24bitRGBBitmap(int16_t, int16_t, uint8_t *, int16_t, i
   // println("SSD1306::Not Implemented draw24bitRGBBitmap()");
 }
 
-void Arduino_SSD1306::invertDisplay(bool i)
+void Arduino_SSD1306::invertDisplay(bool)
 {
-  // _bus->sendCommand(i ? ILI9488_INVON : ILI9488_INVOFF);
+  // println("SSD1306::Not Implemented invertDisplay()");
 }
 
 void Arduino_SSD1306::displayOn(void)