Viewport Shading

XRay
Show whole scene transparent. This option is not supported when using LookDev or Render mode

Wireframe

Color
Single
Show the scene in a single color.
Object
Show the object color
Random
Show random object color
Background

The way how to draw the background in the 3D Viewport.

Theme
Use the background of the theme.
World
Use the world viewport display options
Viewport
Select a custom color the draw the background of the 3D Viewport
X-Ray
Render the scene transparent. With the slider you can control how transparent the scene should appear.
Outline
Render the outline of objects in the viewport. The color of the outline can be adjusted.

Solid

Show the scene using in solid mode. This mode uses the workbench engine to render the 3D Viewport. For all options of the workbench engine look the lighting, color and options.

Background

The way how to draw the background in the 3D Viewport.

Theme
Use the background of the theme.
World
Use the world viewport display options
Viewport
Select a custom color the draw the background of the 3D Viewport

Look Dev

Show the scene in the 3D View in Look Dev mode. This mode is specialized for drawing materials. You can select different lighting conditions to test your materials.

Lighting
Scene Lights
Use the lights in the scene when rendering the scene
Scene World

Use the world of the scene when rendering the scene. When turned off a world will be constructed with the next options

HDRI Environment
The environment map used to render the scene in Look Dev mode.
Rotation
The rotation of the environment on the Z-Axis
Background
The opacity level of a very blurred version of the HDRI will be rendered as background in the 3D View.

Render

Show the scene in the 3D View using the render engine of the scene.