code: public Map<String, Map<String, VariantSet>> getSkinMapping(ResourceBrowser rsBrowser, JawrConfig config) {
  
  		Map<String, Map<String, VariantSet>> currentSkinMapping = new HashMap<>();
  		PropertiesConfigHelper props = new PropertiesConfigHelper(config.getConfigProperties(), JawrConstant.CSS_TYPE);
  		Set<String> skinRootDirectories = props.getPropertyAsSet(JawrConstant.SKIN_DEFAULT_ROOT_DIRS);
  		if (skinMappingType.equals(JawrConstant.SKIN_TYPE_MAPPING_SKIN_LOCALE)) {
  			updateSkinMappingUsingTypeSkinLocale(rsBrowser, config, currentSkinMapping, skinRootDirectories);
  		} else {
  			updateSkinMappingUsingTypeLocaleSkin(rsBrowser, config, currentSkinMapping, skinRootDirectories);
  		}
  
  		return currentSkinMapping;
  	}
docs: Returns the skin mapping from the Jawr config
  
  @param rsBrowser
  the resource browser
  @param config
  the Jawr config
  @return the skin mapping