Comment 7 for bug 549552

The "Colours" tab of the profile preferences already has a "Use colours from system theme" checkbox, which is enabled by default. If you want to customize the colours, you have to uncheck this first.

I was proposing to make the background tab work just like this ("Use background settings from system theme"). I'm not sure of how else to do implement this when there are 2 sources for the background configuration (gconf and gtkrc), without making it very fragile. The issue I have is trying to work out where to take the configuration from (eg, if the user selects transparent, should the transparency be set to the value of the slider, or the value in the theme?)