Let's consider we have to add drop-in resources, such as icons or install scripts.
We can't find anything about it in javafxpackager tool documentation: http://docs.oracle.com/javafx/2/deployment/javafxpackager001.htm
It ant tasks documentation we can find just an explanation on the thing fx:icon (i.e.) won't work for packages and link to this page: http://docs.oracle.com/javafx/2/deployment/self-contained-packaging.htm#BCGICFDB
Here we find this words: "To get more insight into what resources are being used, enable verbose mode by adding the verbose="true" attribute to <fx:deploy>, or pass the -v option to the javafxpackager -deploy command." But don't you think it is very strange to document product in such a way? Why don't we describe this files in documentation?