Unity Editor is orange

Unity editor is looking different after installing Unity 5.4.0. I have attached a screenshot

As you can see anything which is selected it is showing in orange color. Skybox is orange.

The texture which is shown in the image is red in original but in unity it is showing as blue. This is weird. Materials, Folders all are highlighted orange.

That’s really quite odd. All of your colors (except for the ones for the unity skin itself) are inverted. I haven’t seen anything like this reported before and I’m not really sure what would cause something like that. I find it really interesting that the skin itself isn’t inverted.

I have solved my issue.
In the PlayerSettings/Other Settings you have to remove Direct3D11 from AutoGraphics API for Windows.

In previous unity this option was enabled but didn’t face problem like this.

Is there any harm in removing Direct3D11 ?