Blue color displayed as RED

[brightproject]

#define BLUE 0x001F /* 0, 0, 255 */
tft.fillScreen(BLUE);
Why?

[tadamx]

Hi @brightproject ,
Maybe used GREENTAB or default nothing in InitR?
Try tft.initR(INITR_BLACKTAB); in void setup section.
tadamx

[brightproject]

GREENTAB - initialisation GOOD, but image shifted.
I corrected file Adafruit_ST7735.cpp

//madctl = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY | ST7735_MADCTL_BGR;
madctl = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY | ST77XX_MADCTL_RGB;

[samo-sk]

GREENTAB - initialisation GOOD, but image shifted.

Did you mean BLACKTAB? Because your corrected version of Adafruit_ST7735.cpp would cause BLACKTAB colors to be used. It would also cause the image to be shifted if it is the same display type as in #191 and #154.