David H Nebinger:
1. create your standard theme.
2. create a new theme which uses the theme from #1 as the parent.
3. make appropriate changes.
4. use this theme as the theme for the main page.
Using this path, standard theme changes go into the primary theme and will get propagated to the override theme for the main page. Adds an extra theme project to deploy and maintain, but it will give you what you're looking for...
Thanks for the suggestion! Unfortunately, the developers here will never go for a multiple-theme solution just to accomplish this. That really seems like a lot of work just to add a background image to one page.
Has anyone tried to inject something into a body tag using JQuery or YUI in a script coming from a Portlet or a custom layout before? That's the only thing I can think of to make this work. It seems like Liferay should have some better way to accomplish this.
