public FreeTypeBitmapFontData generateData (int size) {
        FreeTypeFontParameter parameter = new FreeTypeFontParameter();
        parameter.size = size;
        return generateData(parameter);
    }
Generates a new {@link BitmapFontData} instance, expert usage only. Throws a GdxRuntimeException if something went wrong.
@param size the size in pixels
core/src/com/badlogic/gdx/graphics/g2d/freetype/FreeTypeFontGenerator.java