// the size of the design grid on which glyphs are laid out
result.append("units-per-em=\"");
result.append(SVGGraphics2D.fixedPrecision(SVGGlyph.FONT_SIZE));
result.append("\" ");
TextLayout tl = new TextLayout("By", font, new FontRenderContext(new AffineTransform(), true, true));
// The maximum unaccented height of the font within the font coordinate system.
// If the attribute is not specified, the effect is as if the attribute were set
// to the difference between the units-per-em value and the vert-origin-y value
// for the corresponding font.