I would like to allow visitors to my site (currently under development, found at [url removed, login to view] ) to change the color background of the page. This is the same idea as shown for [url removed, login to view] (half way down, on the left, under 'site tools' --> 'change color') . Another example is the [url removed, login to view] website (top right, 'page option' orange button) . Just like the above 2 example sites, I would like the page background color to fade (from let's say dark red to lighter red, as users scroll down the page). The coloration change should go in all the sections below the orange header, including between the 2 Ajax tab structures.