ILI9225

Other Hardware Displays
4

I strongly advise you to use an "Adafruit_GFX" style library. It would make your life easier.

However the TFT_22_ILI9225 class does have methods to suit your requirements. e.g.

        void drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color, uint16_t bg);

So you would just say:

  tft.drawBitmap(0, 0, tux, 180, 220, COLOR_WHITE, COLOR_YELLOW);

if you want to draw the solid background colour.
and

  tft.drawBitmap(0, 0, tux, 180, 220, COLOR_WHITE);

if you want to draw a transparent bitmap.

Drawing WHITE text with a solid YELLOW background seems unusual. Hey-ho, it is your eyesight.

Untested. I might this later. That is how Adafruit_GFX draws bitmaps.
Adafruit lets you draw transparent text or text with a solid background.

David.