Scene Builder 2.0.1 sources should contain a valid icon for each platform for native installer

After 8u40 will be GA, the Scene Builder isn't available anymore as a binary from Oracle. But it is BSD licensed. So my question is, where is the icon-set for the different platforms in the sources? If one want to build a native installer by it's own, it should be nice to have the original icon available (maybe in a new folder "resources"). Or am I blind? Or am I allowed to copy and paste the original one from 2.0.0 binary to my own?

(Link I followed to the sources: http://hg.openjdk.java.net/openjfx/8u-dev/rt/file/59b4e48b2f2e/apps/scenebuilder)