When "Use jedit colors in all text components" is ON,
it affects prefs' listtree (with prefs pages), and
makes it drawn with incorrect colors. In my case it's
black text on black background. I attach the screenshot
with my currently set colors (I thinkt it's a bug,
since I don't have any black/black pen/back combination
defined).
My colors setttings
Logged In: YES
user_id=2280
fixed in 3.2pre7