The new themes do not use the page title as we were used to.
I took the following from the Materialism start project:
My dashboard has a layout grid. First row is full width, weight 12. It contains a Container with class pageheader. In that container is a Label with class pageheader-title and render mode Heading 2.
I have not tried that yet but it should not be too hard to create a layout that has all this stuff and uses the PageTitle element rather than a label.
The other rows also have a container, with classes card text-center and a Label with class card-title and render mode Heading 2. That separates each row like the dashboard in the demo site.
Edit: I did not notice on the image but there is more. I did a little inspection on the demo site, these are nested, outermost is the first in the list: