"boolean" --> "Boolean" (per the style guide).
diff --git a/Doc/lib/libformatter.tex b/Doc/lib/libformatter.tex
index 197dc3c..d7c5a6b 100644
--- a/Doc/lib/libformatter.tex
+++ b/Doc/lib/libformatter.tex
@@ -234,7 +234,7 @@
\var{teletype}\code{)}. Size will be a string indicating the size of
font that should be used; specific strings and their interpretation
must be defined by the application. The \var{italic}, \var{bold}, and
-\var{teletype} values are boolean indicators specifying which of those
+\var{teletype} values are Boolean values specifying which of those
font attributes should be used.
\end{methoddesc}