26 December 2019
It is pity, but Apache Netbeans IDE still comes without support default dark mode. Enabling Netbeans 8.2 Plugin portal
does not have any effect, so to use plugins from previous versions we need to add New Provider
(Tools->Plugins) with next URL:
http://plugins.netbeans.org/nbpluginportal/updates/8.2/catalog.xml.gz
After that you should be able setup Darcula LAF in standard way