The 3D display settings create a handle that appears in three dimensions. The 3D Display settings also let you customize aspects of the Handle’s appearance, so you can easily identify and select it.
Handles: 3D Properties
Select the Handle to display the Handle settings in the Properties window.
Lets you select a shape for the handle to assume, so you can easily distinguish it from the objects in the scene.
There are 4 shapes for the Handle knob:
Use the Color R, G, and B fields to set a different color for the Handle. (The default is gray.)
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