[Pharo-dev] pillar highlight text in code

Can we highlight a piece of code? In the updated PBE (Reflection chapter) there is the text: "Change the definition of Integer>>>factorial by inserting the underlined expression as shown below" But I can not see the "underline" in the code example. Is it even possible to add such text properties to a "code-style" formatted text ? BTW, the method name is wrong (in both places) Integer>>#factorial not Integer>>>factorial