We have an app that was created with J2ME Polish that has several images. In particular, one "watermark" image that's displayed in the background of the main menu and another 8 frame sprite that is used for the loading screen.

Currently, we create different "skins" for the app by rebuilding it using a different CSS file and set of images.

I'd like to know if it would be possible for the app to retrieve these images from our server, rather than being included in the build process, so that we can dynamically change the app's "skin" without the need for us to rebuild the entire app and for the users to download that new version.