Package variables are title cased.
For example cased letters include properties that map those characters to their upper case, lower case and title case equivalents (title case is only used for ligatures).
This family of typographic conventions is usually called title case.
Camel case is also distinct from title case, which is traditionally used for book titles and headlines.
Title case capitalizes most of the words yet retains the spaces between the words.
It is one of the rare characters that has separate glyphs for each of its uppercase, title case, and lowercase forms.
