Different desktop background for amnesic

src/freedombone-image-customise

 		mesh_client_startup_applications
 		mesh_desktop_icons
 
+		# Different desktop background for amnesic
+		if [[ $AMNESIC != 'no' ]]; then
+			MESH_DESKTOP_BACKGROUND_IMAGE=/usr/local/share/${PROJECT_NAME}_mesh_amnesic_background.png
+		fi
+
 		# change the desktop background
 		if [ $MESH_DESKTOP_BACKGROUND_IMAGE ]; then
 			if [ -f $MESH_DESKTOP_BACKGROUND_IMAGE ]; then