property Highlight.FontSize as Long
Indicates the size of the font to display the text.

TypeDescription
Long A long expression that specifies the size of the font.
By default, the FontSize property is 0, which has no effect . The Font property has effect only if specified a value different than 0. The Font property specifies a different font face to be applied to the element.

The following screen shot displays the objects with this element set: