static void drawMonthDay(DateTime dateTime, int month, int year, CalendarCellStyle calendarCellStyle, Canvas canvas, Paint paint, Context context){
        paint.setTextSize(DisplayUtils.convertDpToPixel(DATE_TEXT_SIZE, context));
        paint.setStrokeWidth(5);
        // тут берется шрифт
        paint.setTypeface(CalendarHelper.sFonts[CalendarHelper.ROBOTO_REGULAR]);
        paint.setColor(calendarCellStyle.getDateColor(context));
        if (dateTime != null){
            if (dateTime.getMonth() == month && dateTime.getYear() == year){
                String day = String.valueOf(dateTime.getDay());
                int textWidth = (int)paint.measureText(day);
                int w = canvas.getWidth();
                int xPos = canvas.getWidth()/2 - textWidth/2;
                int yPos = (int) ((canvas.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
                canvas.drawText(day, xPos, yPos, paint);
            }
        }
    }

    public static Typeface[] sFonts = new Typeface[4];

    Шрифты грузятся так
     public static void loadFonts(Context context){
        sFonts[ROBOTO_REGULAR] = ResourcesCompat.getFont(context, R.font.roboto_regular);
        sFonts[ROBOTO_LIGHT] = ResourcesCompat.getFont(context, R.font.roboto_light);
        sFonts[ROBOTO_BOLD] = ResourcesCompat.getFont(context, R.font.roboto_bold);
        sFonts[ROBOTO_MEDIUM] = ResourcesCompat.getFont(context, R.font.roboto_medium);
    }