cross-section edge shader

Unity Engine
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3128046--236900--Zrzut ekranu (94).jpg
3128046--236900--Zrzut ekranu (94).jpg1920×1080 366 KB

This is a screenshot of the cross-section that could be made using a version of shader types that were already thoroughly discussed on the forums here.
A distance along the section plane normal should be added to form a layer where the material gets tinted green.

I am just wondering how could be possible to get just a constant width outline instead of this greenish layer?

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Unity Asset Store - The Best Assets for Game Making free?

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Thank you very much.
But thiese shaders provide section fill - based on backfaces and with help of stencil buffer.
I would like to get the cross-section area outlined with a constant width wire.