The Java Platform for this project is the default platform, which is OpenJDK 13.0.1 for my installation of NetBeans 11.2. You can set up the project's dependency on the JavaFX SDK as described below.
I have been unable to attach the JavaFX Javadoc and Sources to their modular JAR files without encountering errors in their use by NetBeans. Attaching the Sources allows you to navigate directly to ...