Can I remove an elements gradient background ?

[Carl]

Is it possible to remove the background gradient for an element?

I can remove for a diagram but there doesn't appear to be an option for individual elements

I'm wish to apply a company's new brand to all diagrams

[AndyJ]

If you save the company logo as an EMF (enhanced meta file) you can attach it to a stereotype.

Then, add that stereotype to a class, and put that class on all your diagrams.

 

[Aaron B]

Gradient fills can be disabled for all elements, but not for individual elements only.  See: Tools | Options > Diagram > Appearance > Gradient Fill Direction for an Element.