Probably a question better put to the OTN forums, but…
In caspian.css, you'll find
/* A very light grey used for the background of windows. See also
* -fx-text-background-color, which should be used as the -fx-text-fill
* value for text painted on top of backgrounds colored with -f
So,
I'm having huge problems trying to make a simple change to a control to
give it a custom look. Something that used to look exactly right on
JavaFX 2.2 is now (since say 6 months) being overriden by the standard
css and I just cannot find any way to get rid of it. It seems to be
related