Help on custom MUI field. How to get text, style and extra arguments?

[dolence]

Hi!

I'm trying to design a custom MUI field which shold draw a status bar on a given coordinate. I'm passing the x and y coordinates, width as arg (not sure if it's intended to work this way) and a text string, all using MUI_XYAT.
Actually, I'm able to get X and Y using mui_get_x(ui) and mui_get_y(ui). I don't know how to get the width value. The text is only shown if:
a) manually set the font with u8g2_SetFont, which has the inconvenience of changing the fonts of the entire form, and
b) manually passing the string to u8g2_DrawUTF8 function. I have tried ui->text, without success.

Edit: it was just dumb me at 3:00 AM making a mistake with IDs (R1/L1). Now I just need to know how to get the arg from XYAT with the width.

muif_t muif_list[] = {
		MUIF_U8G2_FONT_STYLE(0, u8g2_font_NokiaSmallBold_tf),
		MUIF_U8G2_FONT_STYLE(1, u8g2_font_VCR_OSD_tn),
		MUIF_RO("R1", mui_u8g2_draw_statusbar)
};

fds_t fds_data[] =
		MUI_FORM(1)			
		MUI_STYLE(0)		
                MUI_XYAT("L1",65, 42, 20, "SENSORES")
		//MUI_LABEL(0, 55, "SENSORES:")
;

uint8_t mui_u8g2_draw_statusbar(mui_t *ui, uint8_t msg)
{
  u8g2_t *u8g2 = mui_get_U8g2(ui);
  
  switch(msg)
  {
    case MUIF_MSG_DRAW:
      u8g2_DrawRBox(u8g2,  mui_get_x(ui), mui_get_y(ui), 128, 16, 3); 
      u8g2_SetDrawColor(u8g2, 0);
      u8g2_SetFont(u8g2, u8g2_font_NokiaSmallBold_tf); //how can I get the form style?
      u8g2_DrawUTF8(u8g2, mui_get_x(ui)+5, mui_get_y(ui)+10, "SOME TEXT"); //how to get the string from MUI_XYAT?
      u8g2_SetDrawColor(u8g2, 1);
      break;
    case MUIF_MSG_FORM_START:
      break;
    case MUIF_MSG_FORM_END:
      break;
    case MUIF_MSG_CURSOR_ENTER:
      break;
    case MUIF_MSG_CURSOR_SELECT:
      break;
    case MUIF_MSG_VALUE_INCREMENT:
      break;
    case MUIF_MSG_VALUE_DECREMENT:
      break;
    case MUIF_MSG_CURSOR_LEAVE:
      break;
    case MUIF_MSG_TOUCH_DOWN:
      break;
    case MUIF_MSG_TOUCH_UP:
      break;
  }
  return 0;
}