You mean you can do this on a per page basis?

Solved, I believe after a re-upload in another back-end section (header) but why is it that there are 2 different upload sections?

You say to make the single post header transparent. Where to set that? :-)

Thanks. What about making it possible in icon-box element to replace it by images? Something like: http://www.elegantthemes.com/preview/Divi/blurbs/
Btw: hope it will soon be possible to change fonts on a per element basis.
Hope your new years day has been great!