My Eclipse javadoc view has a black background which makes it look terrible and partly unreadable (e.g. links are dark blue on black). Even worse, the javadoc popup has black background, too. I can't find the corresponding setting.
The answer by Sumit Singh showed me how to change the background for the javadoc view. However, I still see no way how to change the foreground. Even worse, the javadoc popup background color didn't change.
I don't think it's caused by a plugin, as it happens with a fresh install, too. This happens on Ubuntu 10.4. In Windows the colors can't be changed either, but there are fine.
You need to change the 'Tooltip' color in Ubuntu at the OS level.