Lenna example

#define LCD_WIDTH 135
#define LCD_HEIGHT 240
#define LCD_ROTATION 0

#define LCD_HOST    VSPI
#define PIN_NUM_MISO -1
#define PIN_NUM_MOSI 19
#define PIN_NUM_CLK  18
#define PIN_NUM_CS   5

#define PIN_NUM_DC   16
#define PIN_NUM_RST  23
#define PIN_NUM_BCKL 4

#include <Arduino.h>
#include <tft_io.hpp>
#include <st7789.hpp>
#include <gfx_cpp14.hpp>
#include "lenna.hpp"
using namespace arduino;
using namespace gfx;

using bus_type =tft_spi_ex<LCD_HOST,PIN_NUM_CS,PIN_NUM_MOSI,PIN_NUM_MISO,PIN_NUM_CLK,SPI_MODE0>;
using lcd_type =st7789<LCD_WIDTH,LCD_HEIGHT,PIN_NUM_DC,PIN_NUM_RST,PIN_NUM_BCKL,bus_type,LCD_ROTATION,400,200>;
lcd_type lcd;
using colors = color<typename lcd_type::pixel_type>;
void setup() {
    Serial.begin(115200);
    draw::filled_rectangle(lcd,(srect16)lcd.bounds(),colors::white);
    Lenna_stream.seek(0); // not necessary, but if we loaded it twice it would be.
    draw::image(lcd,(srect16)lcd.bounds(),&Lenna_stream);

}
void loop() {

}