To ensure that a footnote is displayed in bold italics, you could specify the following:
entryfootnote "Study conducted in 2007" /
textattrs=( weight=bold style=italic );
Because the other font properties are not overridden in this example, they are obtained
from the GraphFootnoteText style element.
Text Statement Basics
The ENTRYTITLE, ENTRYFOOTNOTE, and ENTRY statements add text to
predefined areas of the graph. The text that they add cannot be specified by the options
that are available in plot, axis, legend, or layout statements.
Using Titles ...
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