private void createStyles() {
    root.setStyles(new HashMap<String, RichStyle>());
    RichStyle myStyle = new RichStyle();
    root.getStyles().put("my_style", myStyle);
    myStyle.setFontFace("Helvetica");
    myStyle.setFontStyle("bold");
    myStyle.setFontSize("20");
    myStyle.setTextColor("red");

    RichStyle myOtherStyle = new RichStyle();
    root.getStyles().put("my_other_style", myOtherStyle);
    myOtherStyle.setFontFace("Cuneiform");
    myOtherStyle.setFontStyle("italic");
    myOtherStyle.setFontSize("19");
    myOtherStyle.setTextColor("blue");

    RichStyle sizeOnlyStyle = new RichStyle();
    root.getStyles().put("size_only_style", sizeOnlyStyle);
    sizeOnlyStyle.setFontSize("25");
  }