Unity 5 Gimzos gradient?

A friend of mine had this weird behaviour in his scene view where all gizmos have gradient in them as well as color changing wildly.

How can i get this kind of gizmos? He had no clue and neither do I. We are sharing the same project via svn and he is on 5.2.

Well, after fiddling a bit with Unity, I found out that this happens only when you go to 2D scene mode. For 3D view setups, everything is fine.