Looking through the docs it seems camel case and lower camel case are mislabeled.

Pascal case is a subset of Camel Case where the first letter is capitalized.

That is, userAccount is a camel case and UserAccount is a Pascal case.

The conventions of using these are different. You use camel case for variables and Pascal case for Class names or Constructors.

It is easy to remember. Pascal is a proper noun so capitalize the first letter.
camel is a common noun, so you do not capitalize the first letter.

TL;DR

• lower-camel-case should be camel-case
• camel-case should be pascal-case