< Default file extension for new files, or @c NULL.
< Index in @ref filetypes.
Untranslated short name, such as "C", "None". * Must not be translated as it's used for hash table lookups - use * filetypes_get_display_name() instead.
< Array of filename-matching wildcard strings.
Shown in the file open dialog, such as "C source file".
Represents a filetype.