Unref the pixbuf when we are destroying the grid. Changed the brush mode icon to a wallpaper roller type icon. Correctly attach the filename to the app. Only opens files with the factory. Quits once the file has been loaded, so long as the process isn't the factory.
Basic version needs some fixes.
Don't show the floating preview until the rest of the app is shown. Destroy the floating preview if one exists. Put preview into a toplevel window if it gets too large for the dock. Enables resizing, and scrolling. Copied code from gnome-libs to put the menu hints into an IEStatus widget.