Use this dialog box to choose a background effect to use in the Scene View
- Mode
-
Selects the type of background effect. Choose from:
- Plain
- Graduated
- Horizon Note: Horizon mode and the associated colors are only available for 3D models.
- Color
-
Sets the color for a plain background.
- Top Color
-
Sets the top color in a graduated background.
- Bottom Color
-
Sets the bottom color in the graduated background.
- Sky Color
-
Sets the sky color (top) in a horizon background. This option is available for 3D models only.
- Horizon Sky Color
-
Sets the sky color (bottom) in a horizon background. This option is available for 3D models only.
- Horizon Ground Color
-
Sets the ground color (top) in a horizon background. This option is available for 3D models only.
- Ground Color
-
Sets the ground color (bottom) in a horizon background. This option is available for 3D models only.
Ribbon: View tab 
Scene View panel Background
Shortcut menu: Right-click a blank area in the scene, and click Background on the context menu.