is there an Application which lets me preview all the Theme-Widgets at once?
Like in the old Ubuntu-tweak there was some sort of Preview of all Theme-button/slider/progressbar-layouts. But nowadays there isnt.
Can somebody help me with this?
You can just install the The Widget Factory with
And run it in your terminal with
I think what you're looking for is "The Widget Factory" or its somewhat newer version PyWF which is available from here: http://gtk-apps.org/content/show.php/PyTWF?content=102024