I created a new theme but I don't know how to apply it.
I want to have access to this theme from a webDypro application to apply it and remove it dynamically, and especially , I want to modify dynamically the area where the name of the current view is displayed (just below the top navigation). Is this possible?
Do you want to apply this new theme you created only for the one webdynpro application you created or you want to apply this new theme to the whole portal?
Please look through the following link:
Is it about portal themes u r asking...Then u can go thru the following docs:
<a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/6483a890-0201-0010-48a6-b6e595111efe">Creating portal display rules</a>
<a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e549a890-0201-0010-3f8b-d3b852457ebd">Creating a new portal desktop</a>