I would say what you are looking for is a background image, you would then slice and use the sides, middle column, and top, where its exposed behind the header and Main page, or alternatively you can use a general background image, and position the regions of the site on it,  then add images to the background, and slice from there. You can use a simple theme like this: https://drupal.org/project/business and adjust the components around it to look just like that.
The background you reference just consists of this:
http://joomla16.siteground.com/templates/siteground-j16-23/images/wrapper.png
and this:
http://joomla16.siteground.com/templates/siteground-j16-23/images/headerimg.jpg

Which could have been complete image, cut apart, then rejoined to look continuous around the website regions


On Tue, Oct 8, 2013 at 9:52 PM, Jay Ashworth <jra@baylink.com> wrote:
I've gotten myself in a bit over my head, volunteering on a website project
for the local County Fair authority, and after getting first purchase on the
scope of the job, discarded Wordpress, and later (when I simply couldn't wrap
my head around it), Joomla.  Drupal, it is.  :-)

But in that Joomla phase, I (and they) fell in love with Siteground's theme
called Nature Jars -- or at least, it's design, which is an in-set main column
well, with a silhouetted nameplate image over a full-bleed background, like so:

   http://www.siteground.com/template-preview/joomla25/siteground-j16-23

What I like particularly about this design is that while the nameplate image
is actually only the size of the column well, it *looks* like it's part of
the top background image.  (I'll be using a different nameplate, but plan
still to silhouette it.  And I'd actually like the inset to be even more
pronounces -- the gutters wider -- than that.)

I've been looking through the drupal.org themes library, but haven't been
able to find anything for D7 that looks all that much like this; does this
design perchance tickle anyone's memory?

It's possible, I suppose, that it could be ported, but I'm already growing
grass to get a hamburger; I haven't time to truck in the dirt, as well. :-)

Cheers,
-- jra

--
Jay R. Ashworth                  Baylink                       jra@baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA               #natog                      +1 727 647 1274
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