Touchkit theming ignored

I created a “Hello World” Touchkit App with Netbeans with New project → Vaadin Touchkit Template.
Ok, works fine. Then I copied the complete theme block from another project.
and assigned it in the mainview with @Theme(“touchtheme”).

Then the behaviour was rather inpredictable: Some controls changed their look (button/panel background)
but other ignored any changes in the css file?

I read about that the theming in touchkit apps don’t work the same way as for standard Vaadin apps ?
Tutorials oder representative samples about this issue are appreciated.

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