To control the inactive opacity of the
ViewCube tool
Click View
tab Views
panel ViewCube. At the Command prompt,
enter navvcube.
Right-click the ViewCube tool and click
ViewCube Settings.
In the ViewCube Settings dialog
box, under Display, drag the Inactive Opacity slider left or right.
Dragging the slider to
the left increases the transparency of the ViewCube tool, while
dragging the slider to the right increases the opacity of the ViewCube
tool.