- Most generally, sexp diary entries can perform arbitrary
-computations to determine when they apply. @xref{Sexp Diary Entries,,
-Sexp Diary Entries, elisp, The Emacs Lisp Reference Manual}.
+ Each of the standard sexp diary entries takes an optional parameter
+specifying the name of a face or a single-character string to use when
+marking the entry in the calendar. Most generally, sexp diary entries
+can perform arbitrary computations to determine when they apply.
+@xref{Sexp Diary Entries,, Sexp Diary Entries, elisp, The Emacs Lisp
+Reference Manual}.