+ ### install background and app icons
+ # clean up any 'background' dir if exists
+ rm -rf "$img_mnt"/{,.}background
+ git_retrieve --file $sface_GITPATH macos/graphic-install-background.png "$img_mnt"/.background/background.png
+ git_retrieve --file $sface_GITPATH macos/graphic-sfa.icns "$img_mnt"/$resource_path/appIcon.icns
+ # the volume icons won't work - who cares
+# git_retrieve --file $sface_GITPATH macos/graphic-vol-sface.icns "$img_mnt"/.background/volumeIcon.icns
+# git_retrieve --file $sface_GITPATH macos/graphic-vol-sface.png "$img_mnt"/.background/volumeIcon.png
+
+ # instantiate version
+ sed -e "s,@VERSIONTAG@,$sfa_release,g" -e "s,@SCMURL@,${sfa_GITPATH},g" \
+ "$img_mnt"/$resource_path/sfa/util/version.py.in > "$img_mnt"/$resource_path/sfa/util/version.py
+