diff --git a/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.cpp b/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.cpp
index 4a4699452..344c22dad 100755
--- a/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.cpp
+++ b/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.cpp
@@ -17,6 +17,9 @@ const uint16_t ST7789_colors[]={ST7789_BLACK,ST7789_WHITE,ST7789_RED,ST7789_GREE
   ST7789_YELLOW,ST7789_NAVY,ST7789_DARKGREEN,ST7789_DARKCYAN,ST7789_MAROON,ST7789_PURPLE,ST7789_OLIVE,\
 ST7789_LIGHTGREY,ST7789_DARKGREY,ST7789_ORANGE,ST7789_GREENYELLOW,ST7789_PINK};
 
+#ifdef ESP32
+#define ST7789_DIMMER
+#endif
 
 uint16_t Arduino_ST7789::GetColorFromIndex(uint8_t index) {
   if (index>=sizeof(ST7789_colors)/2) index=0;
@@ -87,7 +90,7 @@ Arduino_ST7789::Arduino_ST7789(int8_t dc, int8_t rst, int8_t sid, int8_t sclk, i
 
 // Constructor when using hardware SPI.  Faster, but must use SPI pins
 // specific to each board type (e.g. 11,13 for Uno, 51,52 for Mega, etc.)
-Arduino_ST7789::Arduino_ST7789(int8_t dc, int8_t rst, int8_t cs)
+Arduino_ST7789::Arduino_ST7789(int8_t dc, int8_t rst, int8_t cs, int8_t bp)
   : Renderer(ST7789_TFTWIDTH, ST7789_TFTHEIGHT) {
   _cs   = cs;
   _dc   = dc;
@@ -95,6 +98,7 @@ Arduino_ST7789::Arduino_ST7789(int8_t dc, int8_t rst, int8_t cs)
   _hwSPI = true;
   _SPI9bit = false;
   _sid  = _sclk = -1;
+  _bp = bp;
 }
 
 
@@ -253,7 +257,15 @@ void Arduino_ST7789::commonInit(const uint8_t *cmdList) {
   }
 
   if (_bp>=0) {
+#define ESP32_PWM_CHANNEL 1
+#ifdef ST7789_DIMMER
+    ledcSetup(ESP32_PWM_CHANNEL,4000,8);
+    ledcAttachPin(_bp,ESP32_PWM_CHANNEL);
+    ledcWrite(ESP32_PWM_CHANNEL,128);
+#else
     pinMode(_bp, OUTPUT);
+#endif
+
   }
 
 
@@ -348,13 +360,15 @@ void Arduino_ST7789::setRotation(uint8_t m) {
   }
 }
 
-void Arduino_ST7789::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1,
- uint16_t y1) {
+void Arduino_ST7789::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
+  setAddrWindow_int(x0,y0,x1-1,y1-1);
+}
 
+
+void Arduino_ST7789::setAddrWindow_int(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
   uint16_t x_start = x0 + _xstart, x_end = x1 + _xstart;
   uint16_t y_start = y0 + _ystart, y_end = y1 + _ystart;
 
-
   writecommand(ST7789_CASET); // Column addr set
   writedata(x_start >> 8);
   writedata(x_start & 0xFF);     // XSTART
@@ -370,23 +384,11 @@ void Arduino_ST7789::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1,
   writecommand(ST7789_RAMWR); // write to RAM
 }
 
-void Arduino_ST7789::pushColor(uint16_t color) {
-  SPI_BEGIN_TRANSACTION();
-  DC_HIGH();
-  CS_LOW();
-
-  spiwrite(color >> 8);
-  spiwrite(color);
-
-  CS_HIGH();
-  SPI_END_TRANSACTION();
-}
-
 void Arduino_ST7789::drawPixel(int16_t x, int16_t y, uint16_t color) {
 
   if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
 
-  setAddrWindow(x,y,x+1,y+1);
+  setAddrWindow_int(x,y,x+1,y+1);
 
   SPI_BEGIN_TRANSACTION();
   DC_HIGH();
@@ -405,7 +407,7 @@ void Arduino_ST7789::drawFastVLine(int16_t x, int16_t y, int16_t h,
   // Rudimentary clipping
   if((x >= _width) || (y >= _height)) return;
   if((y+h-1) >= _height) h = _height-y;
-  setAddrWindow(x, y, x, y+h-1);
+  setAddrWindow_int(x, y, x, y+h-1);
 
   uint8_t hi = color >> 8, lo = color;
 
@@ -428,7 +430,7 @@ void Arduino_ST7789::drawFastHLine(int16_t x, int16_t y, int16_t w,
   // Rudimentary clipping
   if((x >= _width) || (y >= _height)) return;
   if((x+w-1) >= _width)  w = _width-x;
-  setAddrWindow(x, y, x+w-1, y);
+  setAddrWindow_int(x, y, x+w-1, y);
 
   uint8_t hi = color >> 8, lo = color;
 
@@ -458,7 +460,7 @@ void Arduino_ST7789::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
   if((x + w - 1) >= _width)  w = _width  - x;
   if((y + h - 1) >= _height) h = _height - y;
 
-  setAddrWindow(x, y, x+w-1, y+h-1);
+  setAddrWindow_int(x, y, x+w-1, y+h-1);
 
   uint8_t hi = color >> 8, lo = color;
 
@@ -543,12 +545,58 @@ void Arduino_ST7789::DisplayOnff(int8_t on) {
   if (on) {
     writecommand(ST7789_DISPON);    //Display on
     if (_bp>=0) {
+#ifdef ST7789_DIMMER
+      ledcWrite(ESP32_PWM_CHANNEL,255);
+#else
       digitalWrite(_bp,HIGH);
+#endif
     }
   } else {
     writecommand(ST7789_DISPOFF);
     if (_bp>=0) {
+#ifdef ST7789_DIMMER
+      ledcWrite(ESP32_PWM_CHANNEL,0);
+#else
       digitalWrite(_bp,LOW);
+#endif
     }
   }
 }
+
+// dimmer 0-100
+void Arduino_ST7789::dim(uint8_t dimmer) {
+  if (dimmer>15) dimmer=15;
+  dimmer=((float)dimmer/15.0)*255.0;
+#ifdef ESP32
+  ledcWrite(ESP32_PWM_CHANNEL,dimmer);
+#endif
+}
+
+void Arduino_ST7789::pushColor(uint16_t color) {
+  SPI_BEGIN_TRANSACTION();
+  DC_HIGH();
+  CS_LOW();
+
+  spiwrite(color >> 8);
+  spiwrite(color);
+
+  CS_HIGH();
+  SPI_END_TRANSACTION();
+}
+
+void Arduino_ST7789::pushColors(uint16_t *data, uint8_t len, boolean first) {
+  uint16_t color;
+
+  SPI_BEGIN_TRANSACTION();
+  DC_HIGH();
+  CS_LOW();
+
+  while (len--) {
+    color = *data++;
+    spiwrite(color >> 8);
+    spiwrite(color);
+  }
+
+  CS_HIGH();
+  SPI_END_TRANSACTION();
+}
diff --git a/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.h b/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.h
index 996412e42..2b81db6f6 100755
--- a/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.h
+++ b/lib/Arduino_ST7789-gemu-1.0/Arduino_ST7789.h
@@ -121,8 +121,8 @@ class Arduino_ST7789 : public Renderer {
 
  public:
 
-  Arduino_ST7789(int8_t DC, int8_t RST, int8_t SID, int8_t SCLK, int8_t CS = -1,int8_t bp = -1);
-  Arduino_ST7789(int8_t DC, int8_t RST, int8_t CS = -1);
+  Arduino_ST7789(int8_t DC, int8_t RST, int8_t SID, int8_t SCLK, int8_t CS, int8_t bp);
+  Arduino_ST7789(int8_t DC, int8_t RST, int8_t CS, int8_t bp);
 
   void     setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1),
            pushColor(uint16_t color),
@@ -134,12 +134,14 @@ class Arduino_ST7789 : public Renderer {
            setRotation(uint8_t r),
            invertDisplay(boolean i),
            DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font),
-
-		   init(uint16_t width, uint16_t height);
+           setAddrWindow_int(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1),
+		       init(uint16_t width, uint16_t height);
   uint16_t Color565(uint8_t r, uint8_t g, uint8_t b);
   uint16_t GetColorFromIndex(uint8_t index);
   uint16_t color565(uint8_t r, uint8_t g, uint8_t b) { return Color565(r, g, b); }
   void DisplayOnff(int8_t on);
+  void dim(uint8_t contrast);
+  void pushColors(uint16_t *data, uint8_t len, boolean first);
 
  protected:
   uint8_t  _colstart, _rowstart, _xstart, _ystart; // some displays need this changed
diff --git a/tasmota/xdrv_13_display.ino b/tasmota/xdrv_13_display.ino
index c7e4fb251..c7fd625db 100644
--- a/tasmota/xdrv_13_display.ino
+++ b/tasmota/xdrv_13_display.ino
@@ -505,7 +505,7 @@ void DisplayText(void)
             cp += var;
             linebuf[fill] = 0;
             break;
-#if defined(USE_SCRIPT_FATFS) && defined(USE_SCRIPT) && USE_SCRIPT_FATFS>=0
+#if defined(USE_SCRIPT_FATFS) && defined(USE_SCRIPT)
           case 'P':
             { char *ep=strchr(cp,':');
              if (ep) {
@@ -1512,7 +1512,7 @@ void rgb888_to_565(uint8_t *in, uint16_t *out, uint32_t len);
 #endif
 #endif
 
-#if defined(USE_SCRIPT_FATFS) && defined(USE_SCRIPT) && USE_SCRIPT_FATFS>=0
+#if defined(USE_SCRIPT_FATFS) && defined(USE_SCRIPT)
 
 #ifdef ESP32
 extern FS *fsp;
@@ -1541,14 +1541,13 @@ void Draw_RGB_Bitmap(char *file,uint16_t xp, uint16_t yp) {
     uint16_t ysize;
     fp.read((uint8_t*)&ysize,2);
 #if 1
-    uint16_t xdiv=xsize/XBUFF_LEN;
     renderer->setAddrWindow(xp,yp,xp+xsize,yp+ysize);
-    for(int16_t j=0; j<ysize; j++) {
-      for(int16_t i=0; i<xsize; i+=XBUFF_LEN) {
-        uint16_t rgb[XBUFF_LEN];
-        uint16_t len=fp.read((uint8_t*)rgb,XBUFF_LEN*2);
-        if (len>=2) renderer->pushColors(rgb,len/2,true);
-      }
+    uint16_t rgb[xsize];
+    for (int16_t j=0; j<ysize; j++) {
+    //  for(int16_t i=0; i<xsize; i+=XBUFF_LEN) {
+        fp.read((uint8_t*)rgb,xsize*2);
+        renderer->pushColors(rgb,xsize,true);
+    //  }
       OsWatchLoop();
     }
     renderer->setAddrWindow(0,0,0,0);
diff --git a/tasmota/xdsp_12_ST7789.ino b/tasmota/xdsp_12_ST7789.ino
index 69440debf..0b1038cdc 100644
--- a/tasmota/xdsp_12_ST7789.ino
+++ b/tasmota/xdsp_12_ST7789.ino
@@ -83,17 +83,17 @@ void ST7789_InitDriver()
     fg_color = ST7789_WHITE;
     bg_color = ST7789_BLACK;
 
-    uint8_t bppin=BACKPLANE_PIN;
+    int8_t bppin=BACKPLANE_PIN;
     if  (PinUsed(GPIO_BACKLIGHT)) {
       bppin=Pin(GPIO_BACKLIGHT);
     }
 
-    uint8_t reset = -1;
+    int8_t reset = -1;
     if  (PinUsed(GPIO_OLED_RESET)) {
       reset=Pin(GPIO_OLED_RESET);
     }
 
-    uint8_t cs = -1;
+    int8_t cs = -1;
     if  (PinUsed(GPIO_SSPI_CS)) {
       cs=Pin(GPIO_SSPI_CS);
     } else if (PinUsed(GPIO_SPI_CS)) {
@@ -114,7 +114,7 @@ void ST7789_InitDriver()
 
     // init renderer, may use hardware spi
     if (PinUsed(GPIO_SPI_CS) && (Pin(GPIO_SPI_MOSI)==HW_SPI_MOSI) && (Pin(GPIO_SPI_CLK)==HW_SPI_CLK) && PinUsed(GPIO_SPI_DC)) {
-        st7789  = new Arduino_ST7789(Pin(GPIO_SPI_DC), reset, Pin(GPIO_SPI_MOSI), Pin(GPIO_SPI_CLK), cs, bppin);
+        st7789  = new Arduino_ST7789(Pin(GPIO_SPI_DC), reset, cs, bppin);
     } else {
       if ((PinUsed(GPIO_SSPI_CS) || PinUsed(GPIO_OLED_RESET)) && PinUsed(GPIO_SSPI_MOSI) && PinUsed(GPIO_SSPI_SCLK) && PinUsed(GPIO_SSPI_DC)) {
         st7789  = new Arduino_ST7789(Pin(GPIO_SSPI_DC), reset, Pin(GPIO_SSPI_MOSI), Pin(GPIO_SSPI_SCLK), cs, bppin);