bugfix with FG / BG color

lib/display/display.cpp

@@ -5,15 +5,8 @@
 #include "esp_task_wdt.h"
 
 // mapping suggestion for ESP32, e.g. LOLIN32, see .../variants/.../pins_arduino.h for your board
-// NOTE: there are variants with different pins for SPI ! CHECK SPI PINS OF YOUR BOARD
 // BUSY -> 4, RST -> 16, DC -> 17, CS -> SS(5), CLK ->   (18), DIN -> MOSI(23), GND -> GND, 3.3V -> 3.3V
 
-// mapping of Waveshare Universal e-Paper Raw Panel Driver Shield for Arduino / NUCLEO
-// BUSY -> 7, RST -> 8, DC -> 9, CS-> 10, CLK -> 13, DIN -> 11
-
-// base class GxEPD2_GFX can be used to pass references or pointers to the display instance as parameter, uses ~1.2k more code
-// enable or disable GxEPD2_GFX base class
-
 GxEPD2_BW<GxEPD2_750, GxEPD2_750::HEIGHT> display(GxEPD2_750(/*CS=*/5, /*DC=*/17, /*RST=*/16, /*BUSY=*/4));
 
 GFXcanvas1 *displayCanvas;
@@ -30,7 +23,10 @@ void setupDisplay()
 {
 	Serial.println("setupDisplay");
 	delay(100);
-	//display.init(115200); TODO
+	display.init(115200); // TODO
+	display.setRotation(0);
+	display.setFullWindow();
+	display.firstPage();
 
 	displayCanvas = new GFXcanvas1(display.width(), display.height());
 
@@ -55,12 +51,9 @@ void displayWritePixel(int16_t x, int16_t y, uint16_t color)
 
 void displayFlush()
 {
-	display.setRotation(0);
-	display.setFullWindow();
-	display.firstPage();
 	display.fillScreen(GxEPD_WHITE);
-
-	display.drawBitmap(0, 0, displayCanvas->getBuffer(), displayCanvas->width(), displayCanvas->height(), GxEPD_BLACK);
+	display.drawBitmap(0, 0, displayCanvas->getBuffer(), displayCanvas->width(), displayCanvas->height(), GxEPD_WHITE, GxEPD_BLACK);
+	display.display();
 }
 
 /*

lib/face/faceCalendar.cpp

@@ -141,7 +141,7 @@ void display_calender()
 	const unsigned char *icon = getIconById(weatherData.current_icon, 64);
 	if (icon)
 	{
-		canvas->drawBitmap(72, 325, icon, 64, 64, GxEPD_WHITE);
+		canvas->drawBitmap(72, 325, icon, 64, 64, GxEPD_BLACK, GxEPD_WHITE);
 	}
 
 	// temperature

lib/face/faceWeather.cpp

@@ -72,7 +72,7 @@ void render_current()
 	const unsigned char *icon = getIconById(weatherData.current_icon, 256);
 	if (icon)
 	{
-		canvas->drawBitmap(192, 0, icon, 256, 256, GxEPD_WHITE);
+		canvas->drawBitmap(192, 0, icon, 256, 256, GxEPD_BLACK, GxEPD_WHITE);
 	}
 
 	// 250 height
@@ -111,7 +111,7 @@ void render_forecast()
 	icon = getIconById(weatherData.forecast_1_icon, 64);
 	if (icon)
 	{
-		canvas->drawBitmap(0 + 48, 260, icon, 64, 64, GxEPD_WHITE);
+		canvas->drawBitmap(0 + 48, 260, icon, 64, 64, GxEPD_BLACK, GxEPD_WHITE);
 
 		sprintf(label, "%2d ... %2d", weatherData.forecast_1_min, weatherData.forecast_1_max);
 		canvas->getTextBounds(label, 0, 0, &tbx, &tby, &tbw, &tbh);
@@ -124,7 +124,7 @@ void render_forecast()
 	icon = getIconById(weatherData.forecast_2_icon, 64);
 	if (icon)
 	{
-		canvas->drawBitmap(160 + 48, 260, icon, 64, 64, GxEPD_WHITE);
+		canvas->drawBitmap(160 + 48, 260, icon, 64, 64, GxEPD_BLACK, GxEPD_WHITE);
 
 		sprintf(label, "%2d ... %2d", weatherData.forecast_2_min, weatherData.forecast_2_max);
 		canvas->getTextBounds(label, 0, 0, &tbx, &tby, &tbw, &tbh);
@@ -137,7 +137,7 @@ void render_forecast()
 	icon = getIconById(weatherData.forecast_3_icon, 64);
 	if (icon)
 	{
-		canvas->drawBitmap(320 + 48, 260, icon, 64, 64, GxEPD_WHITE);
+		canvas->drawBitmap(320 + 48, 260, icon, 64, 64, GxEPD_BLACK, GxEPD_WHITE);
 
 		sprintf(label, "%2d ... %2d", weatherData.forecast_3_min, weatherData.forecast_3_max);
 		canvas->getTextBounds(label, 0, 0, &tbx, &tby, &tbw, &tbh);
@@ -150,7 +150,7 @@ void render_forecast()
 	icon = getIconById(weatherData.forecast_4_icon, 64);
 	if (icon)
 	{
-		canvas->drawBitmap(480 + 48, 260, icon, 64, 64, GxEPD_WHITE);
+		canvas->drawBitmap(480 + 48, 260, icon, 64, 64, GxEPD_BLACK, GxEPD_WHITE);
 
 		sprintf(label, "%2d ... %2d", weatherData.forecast_4_min, weatherData.forecast_4_max);
 		canvas->getTextBounds(label, 0, 0, &tbx, &tby, &tbw, &tbh);