I\'ve been searching for about 40 minutes now and this is just so frustrating...
The standard search result background color in eclipse is freaking white and black. Ever
If you mean (as I think you do) how do you change the highlight colour of strings that match what you select in an editor (e.g. you double-click on 'filename' and Eclipse highlights other references to 'filename' in a dull grey background), then the following post answers this: Eclipse: How do you change the highlight color of the currently selected method/expression?
In a nutshell, you want: * General -> Editors -> Text Editors -> Annotations * Look for "Occurrences" in the Annotation types list and change it from grey to your favourite colour!