In 6.0, there are new classification dialogs invoked by the "Classification Dialog" and "Paragraph Classification Dialog" buttons from the Classification toolbar (Show - Toolbars - TSCP Classification). The dialog titles are the same as the button labels.
I think that both labels and titles should contain no "dialog" word as this is a standard way how to name dialogs in LibreOffice - so they should be named just "classification" and "paragraph classification".
Right -> NEW
Fixed in bug 115228 meanwhile.
*** This bug has been marked as a duplicate of bug 115228 ***