FT812 Font problem

[soohy]

Hello.
I'm trying to add font to my project, but I can't deal with it.
My program:


#include <EEPROM.h>
#include <SPI.h>
#include <GD3.h>
#include "fontdemo_assets.h"

void setup()
{
 GD.begin();
 LOAD_ASSETS();
}

void loop()
{
 for(int i=0; i<OPENSANS_BOLD_CELLS; i++)
 {
   GD.ClearColorRGB(0x103000);
   GD.Clear();
   GD.cmd_text(240, 136, 0, OPT_CENTER, "Hello world in Comic Sans MS");
   GD.cmd_button(160, 200,  160, 40,  0, 0, "Press me!");
   GD.cmd_number(400, 240, 30, OPT_CENTER, i);
   GD.swap();
   delay(200);
 }
}
and here is fontdemo_assets.h

#define LOAD_ASSETS() GD.safeload("OS.GD2");
#define OPENSANS_BOLD_HANDLE 0
#define OPENSANS_BOLD_WIDTH 12
#define OPENSANS_BOLD_HEIGHT 16
#define OPENSANS_BOLD_CELLS 96
#define ASSETS_END 9364UL
static const shape_t OPENSANS_BOLD_SHAPE = {0, 12, 16, 0};
I tried with default_assets.h (like in attachment) but I still see only white rectangle, like this:

_
ft812_gd3.zip (30.02 KB)

Thanks for any help.
Peter