private class MigrateThemeTask extends NodeExistsDelegateTask {
        public MigrateThemeTask(final String themeName) {
            super(
                    String.format("Copy %s theme to its new home", themeName),
                    String.format("/modules/site/config/themes/%s", themeName),
                    new WarnTask("Warn about already existing theme", String.format("Could not copy '%s' theme to new site module. Check you configuration at /modules/site/config/themes/%s", themeName, themeName)),
                    new ArrayDelegateTask("",
                            new CopyNodeTask(String.format("Copy %s theme to its new home", themeName), String.format("/modules/standard-templating-kit/config/themes/%s", themeName), String.format("/modules/site/config/themes/%s", themeName), false),
                            new CheckOrCreatePropertyTask("", String.format("/modules/site/config/themes/%s", themeName), "class<span class="code-quote">", "info.magnolia.module.templatingkit.style.ThemeImpl")
                    )
            );
        }
    }