gtkhtml-sharp 2.16.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Enumeration of paragraph styles possible in . System.Enum Field Gtk.HTMLParagraphStyle Normal style. Field Gtk.HTMLParagraphStyle Header 1 style. Field Gtk.HTMLParagraphStyle Header 2 style. Field Gtk.HTMLParagraphStyle Header 3 style. Field Gtk.HTMLParagraphStyle Header 4 style. Field Gtk.HTMLParagraphStyle Header 5 style. Field Gtk.HTMLParagraphStyle Header 6 style. Field Gtk.HTMLParagraphStyle Email address style. Field Gtk.HTMLParagraphStyle Preformatted text style. Field Gtk.HTMLParagraphStyle Unnumbered list style. Field Gtk.HTMLParagraphStyle Roman-numeral numbered list. Field Gtk.HTMLParagraphStyle Arabic-numbered ordered list. Field Gtk.HTMLParagraphStyle Greek-lettered ordered list.