Object Name Highlighting

Hi,

in Toad Options I've selected Object Name Highlighting (see attached screenshot). If I write SELECT * FROM t_table, the name of the table will be highlighted. But if I write the statement with the schema name in front of the table name, the table object will not be highlighted: SELECT * FROM schema.t_table. Why is this behavior? In Toad for Oracle 12.6.* I can write schema.t_table and the object was highlighted?

Kind regards.