Thanks for the helpful additions. I just realized RC5 was using the res specified in boot.plist! While this is definitely neat, it does seem to imply that a user HAS to adjust the theme as necessary if it is one that isn't flexible (I think people sometimes left the res stuff alone, and let their monitor/screen scale up/down the image, thus not breaking a non-flexible theme). Though I suppose we could change the res in boot.plist, right?
This is something I'll have to try, as I want this theme I'm working on to be scalable, and will test out a few resolutions.
Something else I've noticed is regarding the selection graphics. Before RC5, device_selection was not drawn until entering the options screen. Now with RC5, though it still doesn't, it does however seem to use the "device_xxx_o" graphic, which seems to have the opposite effect. It is essentially drawing a selection graphic in the first screen when there is nothing to select. I hope that makes sense. Not a huge deal, and I suppose could be intentional.
Lastly, any word on progress being made regarding the options screen graphical rendering issue? ;-)