User Guide cover designs

Tom, when the Design Team has done their v4.0 rebranding work
(deadline is January 26), Klaus-Juergen and I and anyone else
interested can sort out the new cover design. K-J is keeping us
informed on this list (there was a note from him yesterday on the
topic). K-J's earlier v4 cover design suggestion was, as you know,
based on the existing v3.x covers. I'll probably recommend that we use
his proposed v4.0 design, slightly modified.

For reference, here is the whiteboard page for v4.0 branding.
https://wiki.documentfoundation.org/Design/Whiteboards/4.0_Branding

--Jean