The style was already fixed for the "light" offline style,
but the dark offline style was missed.
Amends d39c9d37ade8d74e534952e47061168be8904fc7
Task-number: QTBUG-129178
Fixes: QTBUG-131950
Pick-to: 6.8
Change-Id: I4f005cbe1945b8a973fb7bf77fb56b4d59d96b9c
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Kai Köhne <kai.koehne@qt.io>