How to make Viewport Shading flat mode objects darker?

[anon79049660]

All objects are close to white.
I want all objects or selected objects to be the same color as Studio.

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Version: 2.8/2.81
Conditions:
No texture.
No material is assigned. Or the default Material.001 (Principle BSDF)
UV Unwrapped and textured, but temporarily hidden
The cavity is Off.
The Viewport color is set to something from the default.

[rigoletto]

You can enable “Shadow” under the options for “Flat” lighting.

[anon79049660]

Thanks for the answer!
You’re right, “Shadow” was effective.
The setting options from the gear icon made it easier to see!