QUESTION Innovation Theme Background Image

[Timbow]

How frustrating! I am sure we have all been there.
'I doesn't work! Aaargh!' 

Yes, the grey behind everything in the innovation theme is defined at line 2 of the css:

Code:

body {
    background:#EFEFEF;
}

so if changing it makes no difference you are doing something else wrong.
You can add a background image on top of the colour like this:

Code:

body {
    background:#EFEFEF url(images/screenshot.png);
}

This is the css reference I use http://reference.sitepoint.com/css combined with chrome's 'Inspect' function but there are surely other ways.