Wherever a symbol is declared or defined, its name is formatted with an appropriate "Declaration" style. There are declaration styles for different types of things, like structs, classes, unions, functions, etc.
For example, a structure might look like this:
The structure name "CLIP" is shown in the "Declare Struct" style. The member fields inside the struct are shown in the "Declare Member" style. There are several styles named "Declare...something".
If you select Options > Style Properties, you can see all the declaration styles. Their names all start with "Declare...".