Can you say, how can I change yellow background color of occurences variables? I didn't found, may be it's in General or Windows settings?
Preferences > General > Editors > Text Editors > Annotations > Occurrences
Thank you! Works!
I had to restart Eclipse for this to take effect. You may see entries for both Perl and Java occurrences.
correction: closing and opening the EPIC editor is enough to see the effects.