Our them.es+ plugin has not received much love recently and we decided to put it into EOSL status. This means that the code base will not receive any further updates and we can not provide any support anymore. Please note that the plugin will be removed from the WordPress plugin directory and from Github (sooner or later).
Gutenberg has become the new default editor in WordPress 5.0, superseding shortcode driven editing experience to the greatest possible extent (which is good by the way!). From now on WordPress developers should put their efforts into improving Gutenberg which will be the indisputable future of WordPress.
In this scenario them.es+ doesn’t fit in anymore.