I'm using Ubuntu 16.04 and latest Eclipse Neon. When I hover some code, I got my tooltip background black and my text orange. I found it here I must change colors at OS level. Here I saw how to edit colors at OS level. However it didn't work. Even changing Ubuntu Theme, changing tooltip color on Eclipse. I'm using Ambiance right now.
(Duplicate of https://stackoverflow.com/posts/40360725/)
I have verified that
is a viable, albeit suboptimal, workaround in Ubuntu 16.10 and Eclipse 4.6.1 when the desktop appearance uses the BlueMenta themes, with no additional tweaks required.
Tweaking the gtk-3.0 css files didn't work for me.
Other users have had better luck with the scripts in this project