How to enable Cloud-Appearance?

Yes, it was the theme. Sorry.

Boris

Seems you sorted it out, just comment again if you need any assistance.

Yep. One thing though: It still says Tag Cloud in the heading. (see the combo widget “Schlagworte))
I inserted it manually (php function call) in the theme, but don’t know how to toggle that.
It just should be blank.

Any idea?

b.

You should use 'show_title_text' => false (https://github.com/rickard2/utcw/blob/master/CONFIG.md#show-title-text), setting title to an empty string will just make it revert to the default value.

Thanks, that worked!

Boris