appearance The appearance of the document. Declarationstatic let appearance: NSAttributedString.DocumentAttributeKey See AlsoGetting document appearance keysbackgroundColorbottomMargindefaultFontExcludeddefaultTabIntervalexcludedElementshyphenationFactorleftMarginpaperMarginpaperSizeprefixSpacesrightMargintextLayoutSectionstopMarginviewModeviewSize