Read only fields in QuickTickets Dashboard theme based app

I’m developing an application based on QuickTickets Dashboard theme.

With old Vaadin 6 (reindeer theme), read only style strategy is:
https://vaadin.com/wiki/-/wiki/Main/ReadOnly+vs.+Disabled+fields

Now this strategy seems changed. My read only fields keeps original style
instead of “label value pair” style (see screenshot).

Is the wiki obsolete?
Is there something wrong in my project?

Matteo.
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