How to change the highlight color of selected shapes?

I’m working on abutted shapes which are all more or less have blue fill color. The paths of the selected shapes is/are highlighted in blue by default. My problem is that if I select a shape it’s difficult to distinguish the selected shape from the other non-selected (blue) shapes surrounding the selected shape. I’m quite new to Illustrator, I would have expected that there is a possibility to change the highlight color  (Edit – Preferences ?) but I can’t find it. I had a look into the forum but I couldn’t find a post answering my post. Thanks in advance for your assistance!