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Below in an example of the View Style window, where almost all the interesting visualization options can be adjusted. It only deals with meshes, sets or cuts, and not with results.
Selecting Volumes, Surfaces and/or Cuts, you can switch them On and Off, Delete them or rename them. By clicking on a Volume, Surface or Cut, and pressing Color... you can adjust the appearance of the selected set; you can change the color, including the Ambient, Diffuse, Specular, Shininess and transparency components, and return it to its Default color. The Diffuse component is used for all the representations, while the others (Ambient, Specular and Shininess) have more effect in Render visualizations.
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