If Swash is grayed out, then you don’t have any Open Type fonts installed that include swashes such as Lovely Melissa, which comes with 1,372 glyphs and swashes for the reasonable price of $25 ...

Grafitti-esque digital fonts, for example, often take existing fonts and give them a distressed look with the use of filters. Others add swashes to resemble Arabic or Chinese.

Fonts are like pants: It's best to try on a few different styles before making a purchase. ... But swashes take up space, so too many in a given word can distort letter spacing.

Some fonts also include more typographic substitutions in the form of additional alternate glyph sets named contextual alternates, swash alternates, and titling alternates.

Comic Sans Pro contains a versatile range of typographic features including swashes, small caps, ornaments, old style figures and stylistic alternates – all supported by the OpenType® font format.