HAP_DOCUMENT look and feel change

Guys,

We have designed a ZHAP_DOCUMENT which is running fine when we run from portal with user defined look and feel. However, when the Manager gets a notification in UWL and he uses the link to execute the application(i.e. a workflow getting triggered in the background), Manager sees the display unlike portal which is quite relevant to SAP standard look and feel.

What should we be doing to change the display in Workflow?

Let me know if you guys need further details.

Cheers,

Kunjal