Directory styles are defined within DirectoryStyleList section of the BaseQuery in XXX_CONFIG.XML files, where XXX can be Fred4, Ted4, Shell4, Edadmin4 or Admin4.
For each directory style, there one DirectoryStyle section in the DirectoryStyleList section within BaseQuery section. Therefore, to locate a directory style, you need to locate first the parent base query.
Locate the parent base query as explained in Finding a base query in the configuration files.
Expand the base query: you will see the groups (optional), directory style list and search list.
Expand the <DirectoryStyleList>. You will see one or more directory styles.
Expand a directory style. Details are in DirectoryStyle section (DirectoryStyleList).