Legend Preferences

The following legend options can be set in File > Preferences > Colors.

Transparency: By default, the transparency option is turned on. Turning off transparency along with choosing the right background color helps to better visualize the legend if its overlapping the model.
Background Color: When the transparency option is turned off, select the legend's background color.
Divergent Color: By default, divergent color option is turned on. This can be turned off to get normal contour color.
No Result Color: The elements without contour results can be displayed in user-controlled color.