Fonts
barcode_font	Output text in a barcode font.
character_references	Demonstrate character references.
font_configuration	Configure font resources and search for fonts.
font_info	Query various properties of a font such as font name, font style, or encoding.
font_lister	Create a list of all fonts available in the 'searchpath' directories.
font_metrics_info	Query various font-related metrics such as ascender or descender.
glyph_availability	Check the availability of glyphs in a font.
glyph_replacement	Show the effects of glyph substitution in case of glyphs missing in the font.
opentype_feature_tester	Demonstrate all supported typographic OpenType features after checking whether a particular feature is supported in a font.
opentype_features_for_cjk	Demonstrate the use of OpenType features for CJK fonts and text.
retain_font	Performance benefits of keeping a font open across multiple documents.
simulated_fontstyles	Simulate italic and bold text
starter_fallback	Starter sample for fallback fonts
starter_opentype	Demonstrate various typographic OpenType features after checking whether a particular feature is supported in a font.