Direct call shortcut does not work added to the picture. Other shortcuts are working without problem.
Ideas, advice? Excuse my English.
I can confirm this on my Nexus 4. I'm not 100% sure but my theory is, that because Zooper doesn't have the "CALL_PHONE" permission it is not allowed to initiate a call without going through the dialer (Source). I have no experience in this but since even launcher have that permission, it might be needed for an app to use the direct call shortcuts. You should probably write an email to the developers and explain your issue.
Please use the forums for your Zooper related questions. I won't respond to PMs with questions that can/should be asked there. Thank you.
Another option is to just change the icon to something you want. Upload your out image or use some icon that you like. I use Nova as my launcher on my Galaxy S3 Progre, created a direct call widget, and then changed the image to what I wanted it to be. Just a work around if you're interested.
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